This Augmented Reality App Aims to Solve Cold Cases — and Change How True Crime Stories Are Told

Sam Blake

Sam primarily covers entertainment and media for dot.LA. Previously he was Marjorie Deane Fellow at The Economist, where he wrote for the business and finance sections of the print edition. He has also worked at the XPRIZE Foundation, U.S. Government Accountability Office, KCRW, and MLB Advanced Media (now Disney Streaming Services). He holds an MBA from UCLA Anderson, an MPP from UCLA Luskin and a BA in History from University of Michigan. Email him at samblake@dot.LA and find him on Twitter @hisamblake

This Augmented Reality App Aims to Solve Cold Cases — and Change How True Crime Stories Are Told
  • CrimeDoor, an immersive augmented reality app launched last week, is straddling the space between mystery entertainment and crowdsourced crime solving.
  • The app was conceived by Neil Mandt, a longtime film and TV producer-turned-tech entrepreneur. A true crime enthusiast himself, Mandt said he saw an opportunity to merge the popular genre with immersive reality.
  • The AR environments are constructed based on real crime scene photos, police reports and eyewitness accounts.

A new augmented reality app launched this week allows anybody to feel what it's like to explore a murder site as it appeared right after the crime occurred. They may even be able to help crack an unsolved crime.


The app opens onto a map that shows users historic crime scenes in their area, using GPS data. Each crime comes with a case file that includes a list of articles, documents, photos, audio clips and videos curated by crime journalists and researchers that is meant to provide an organized synopsis of "the 5 w's and h."

CrimeDoor was conceived by Neil Mandt, a longtime film and TV producer-turned-tech entrepreneur. A true crime enthusiast, Mandt said he saw an opportunity to merge the popular genre with immersive reality, an industry he's been increasingly involved in over the last few years and which he believes is "on the verge" of explosive growth.

The AR environments are constructed based on real crime scene photos, police reports and eyewitness accounts using CrimeDoor's patent-pending technology and Unity, a gaming engine.

Users can explore the crime scene using their mobile devices at the real, physical location when feasible, or with a joystick navigator from their own home. They'll see the scene as it was reconstructed, and can "pick up" evidence and enlarge it on their screens for closer inspection.

At launch, the app will contain about 500 cases and dozens of virtual doorways, Mandt said. Cases are free, but the app charges $1.99 to enter a door, or a monthly fee of $4.99.


Some of the cases are famous, such as the murder of OJ Simpson's former wife Nicole Brown Simpson or the shooting of John Lennon. But, Mandt said, most will not be as familiar.

One such case is that of Rebecca Zahau, a woman whose 2011 death in Coronado, California was ruled a suicide. The family contested the cause of death and filed a wrongful death lawsuit. Zahau's family has provided CrimeDoor with materials such as court documents and autopsy photos. A perpetrator was charged in a civil trial – not a criminal one – and Mandt said the family wants to bring the case back to light and give the public a chance "to look at it."

Mandt also noted he has heard great feedback from both user test groups and law enforcement agencies.

"The average detective has one hour on a crime scene and later a couple of photos and a matchstick and a hairy sock," Mandt said. "We have shown this to the FBI and law enforcement departments and without exception everyone compared it to DNA. The way DNA changed the game, this will do the same."

According to a company representative, a retired criminal investigator who helped to solve the infamous Golden State Killer case called CrimeDoor "a game changer for cold cases around the world."

UCLA law professor Eugene Volokh, who has studied and written about the intersection of AR/VR and law, told dot.LA that CrimeDoor should be wary of potential issues such as libel or needlessly upsetting a victim's family members. He emphasized, however, that such concerns are no different than those faced by any true crime storyteller, regardless of the medium.

"Generally, there are no legal or ethical problems raised by an AR or VR app as opposed to a documentary or a book," he said.

CrimeDoor, an immersive augmented reality app launched last week, is straddling the space between mystery entertainment and crowdsourced crime solving. Courtesy of CrimeDoor

Mandt, who is self-financing the app, sees partnerships with media companies as a big opportunity for future growth. He said an organization with legacy crime footage, such as "60 Minutes," could partner with CrimeDoor to build out the AR crime portal, re-air the legacy footage on television, then direct viewers to the app and share a cut of the income.

"I'm interested in where the social web goes and how other AR leaders come to us and say here's how we can collaborate," he said. "The tech community, I'm excited to see what kind of creative things they can do with this. And Hollywood – producers will look at this and come to us."

Mandt also hinted at potential expansion by augmenting the user experience with sounds and technology that stimulates a user's sense of touch. He's also considering adding a marketplace to sell merchandise and implementing a credit-earning system to allow for add-on experiences, such as a ride-along in the OJ white Bronco highway chase.

    Down the line, CrimeDoor may incorporate advertising, Mandt said. The app may also eventually incorporate premium content, such as access to movies, shows and books related to a given case.

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    Sam Blake primarily covers media and entertainment for dot.LA. Find him on Twitter @hisamblake and email him at samblake@dot.LA

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    How to Navigate LA Tech Week 2026

    🔦 Spotlight

    Happy Friday, Los Angeles.

    Next week, hundreds of tech events will take over the city, bringing founders, investors, engineers and creators together from October 12 through 18.

    Calling LA Tech Week a conference does not quite capture the experience.

    Presented by Andreessen Horowitz, Tech Week is a decentralized collection of panels, workshops, demonstrations and gatherings hosted independently by startups, venture firms and technology companies. There is no convention center or central stage. The programming stretches from Santa Monica and Venice to Culver City, Downtown, El Segundo and beyond.

    In other words, the city is the venue.

    AI remains the dominant theme for 2026, appearing across enterprise software, healthcare, finance, media and the creator economy. The schedule also reflects industries where Los Angeles has built a particular advantage, including aerospace, defense, robotics, advanced manufacturing, entertainment and consumer technology.

    That range is what makes LA Tech Week distinct. It brings together the software companies shaping what comes next with the industries that already define Southern California.

    The challenge is deciding where to show up.

    Our advice: apply early and organize your schedule by neighborhood. Crossing from Santa Monica to Downtown may look manageable on a calendar created by someone who has never driven in Los Angeles.

    To help you spend more time meeting people and less time crossing the city, we have organized each day’s events by location:

    You can also browse the complete official LA Tech Week calendar.

    Plan carefully, but do not fill every minute. The best conversation of the week may be the one that was never on your calendar.

    More from this week’s LA startup and venture scene below.

    🤝 Venture Deals

      LA Companies

      • El Segundo-based Gallatin AI raised a $50M Series A from new and existing investors including 8VC and Silent Ventures, bringing its total funding to $70M. The defense technology startup will expand its engineering team and advance Navigator, an AI platform that helps U.S. military units coordinate vehicle readiness, supplies, medical logistics and other mission-support operations. - learn more
      • Pasadena-based quantum computing startup Oratomic raised a $475M Series B at a $5.4B valuation, just three months after its Series A. ARCH Venture Partners, Spark Capital, Khosla Ventures, Index Ventures, General Catalyst and Bezos Expeditions co-led the round, bringing Oratomic’s total funding to $775M as it works toward a commercially viable, fault-tolerant quantum computer by 2030. - learn more
      • Torrance-based Fortastra raised a $30M Series A led by First In, with participation from Upfront Ventures, Space Capital, Rsquared, Side Door Ventures, ATX Ventures and existing investors. The company will use the capital to develop its next-generation maneuverable spacecraft, expand its engineering and operations teams and scale production of systems designed to protect critical assets in orbit. - learn more
      • Parallel Systems raised a $100M Series C led by AVP, with participation from Hillspire, Agility Global, Cobalt Capital, Anthos Capital, Congruent Ventures, Riot Ventures and Collaborative Fund. Founded by former SpaceX engineers, the company will use the funding to scale production and commercial deployment of its autonomous, battery-electric Panther rail vehicles, which are designed to make short-haul freight more competitive with trucking. - learn more
      • Gaming studio Gardens Interactive secured more than $35M in a Series B led by Lightspeed, with participation from Sequoia Capital, Index Ventures, Accel, Innovation Endeavors, Zenith Capital and other investors. The company will use the funding to launch and operate its debut social role-playing “strandbox” game, an evolving multiplayer world shaped by players’ actions and interactions. - learn more
      • Outer Spaces raised an $8M pre-seed round led by Upfront Ventures, with participation from Unlock Venture Partners, Mucker Capital and Genius Ventures. The startup is developing outdoor furnishings with integrated solar panels and batteries, turning backyards into sources of clean energy and backup power. - learn more
      • Furientis raised a $25M seed round led by Benchmark at a reported $125M valuation, following a $5M pre-seed announced in May. The defense startup will use the capital to scale production of lower-cost missile interceptors designed to be assembled quickly with readily available components, with a long-term goal of producing 1,000 systems annually at each factory. - learn more
      • Hiyo raised a $20.8M Series B led by Constellation Brands, with returning investor Live Nation also participating. The nonalcoholic beverage company will use the funding to expand its adaptogen- and nootropic-infused social tonics across more than 13,000 retail locations while growing its presence at hospitality venues and live events. - learn more
      LA Venture Funds
      • Navitas Capital participated in Vesta’s $30M Series B, which was led by Conversion Capital and included backing from several major mortgage lenders and financial institutions. The company will use the funding to scale its AI agents across mortgage origination, automating tasks such as application reviews, underwriting decisions and closing-document checks. - learn more
      • MTech Capital led Nettle’s oversubscribed $4.8M seed round, with participation from Project A Ventures, Sure Valley Ventures, Portfolio Ventures and Ventures Together. The insurtech startup will use the funding to expand across the U.S. and Europe while growing its AI platform, which helps commercial insurers identify property risks, accelerate inspections and generate reports. - learn more
      • Bonfire Ventures doubled down on Santé by participating in the company’s $15M Series A, which was led by FINTOP and included other returning investors. The New York startup will use the funding to expand its AI-powered operating system for independent wine and liquor stores, which combines point-of-sale, e-commerce, payments, inventory and marketing tools in one platform. - learn more

      LA Exits

      • Winnow Solutions was acquired by Marina del Rey-based Spring Labs, with financial terms undisclosed. Winnow’s attorney-built library of more than 100,000 state and federal regulatory requirements will become a core part of SpringGRC, helping financial institutions connect changing laws directly to their compliance policies, controls and workflows. - learn more

        Download the dot.LA App

        LA Tech Week 2026: Sunday’s Event Lineup

        🔦 Spotlight

        LA Tech Week 2026 closes Sunday with one final day of events across Los Angeles. We have organized the remaining lineup by neighborhood so you can finish the week with a few last conversations before everyone returns to their regularly scheduled inboxes.

        ARTS DISTRICT

        12:00 PM

        CARSON

        12:00 PM

        CULVER CITY

        9:00 AM

        • Women in Cleantech & Sustainability Hike and Network: See Details Here
          Women in Cleantech & Sustainability

        6:00 PM

        • Founders pitch competition: See Details Here
          Biomorphix solutions, Nightingale regenerative

        HOLLYWOOD

        10:00 AM

        4:00 PM

        • AI International: Film, Music Video & Micro-Drama: See Details Here
          AI International Film Festivals

        MID CITY

        1:00 PM

        OTHER

        12:00 PM

        • ORGANIC LIFE LABS™ PRESENTS THE ALIGNMENT LAB: The Science of human performance: See Details Here
          The Blue Room Collective

        SANTA MONICA

        8:00 AM

        1:00 PM

        6:00 PM

        SOUTH LA

        2:00 PM

        • Future Builders : Family STEM Day: See Details Here
          Black L.A. Tech Week (Community Collective)

        VENICE

        10:00 AM

        12:00 PM

        • How to Raise Funds to Fund Any Business Using Digital Products.: See Details Here
          DN Events

        VIRTUAL

        5:00 PM

        WEST HOLLYWOOD

        3:00 PM

        Each session provides unique opportunities to gain insights, network, and explore various fields of tech innovation. For updates or more event information, visit the official Tech Week calendar.

        Download the dot.LA App

        LA Tech Week 2026: Saturday’s Event Lineup

        🔦 Spotlight

        LA Tech Week 2026 heads into the weekend Saturday with more opportunities to learn, meet fellow builders and explore what is being created across the region. Browse the day’s events by neighborhood below and find the gatherings worth leaving the house for.

        ARTS DISTRICT

        5:30 PM

        BEL AIR

        5:00 PM

        CULVER CITY

        10:00 AM

        1:00 PM

        4:00 PM

        DOWNTOWN

        11:00 AM

        2:00 PM

        • South Asians in Space, Physical AI: See Details Here
          american south asian network

        5:00 PM

        7:00 PM

        HOLLYWOOD

        8:00 PM

        INGLEWOOD

        10:00 PM

        LONG BEACH

        10:00 AM

        12:00 PM

        LOS FELIZ

        8:30 AM

        • Griffith Observatory Hike with Longevity Cities & Don't Die LA: See Details Here
          Longevity Cities

        MALIBU

        5:00 PM

        MARINA DEL RAY

        9:30 AM

        • The Brazen Capital Walk: Connecting Women, Capital & Opportunity: See Details Here
          BrazenEra

        6:00 PM

        • Build an AI workflow editor, natively in Angular: See Details Here
          Workflow Builder

        SANTA MONICA

        7:00 AM

        • Founders Running Club Run in Santa Monica: See Details Here
          Founders Running Club, MongoDb

        9:00 AM

        • MOLTEN - Spatial hackathon (ElevenLabs, AssemblyAI, Rokoko, Datafeel...): See Details Here
          Field Lab

        2:00 PM

        3:30 PM

        6:00 PM

        7:00 PM

        SOUTH LA

        7:00 PM

        THE VALLEY

        7:30 PM

        UCLA

        11:00 AM

        USC

        9:00 AM

        10:00 AM

        10:30 AM

        VENICE

        8:00 AM

        • Open Air Health Tech: See Details Here
          Open Air Health Tech, Bowshock, Govitamins App

        10:00 AM

        10:30 AM

        11:00 AM

        12:00 PM

        6:00 PM

        • Bots, Bytes & Bubbles Benefit: See Details Here
          Distinguished Minds Institute dba thinqueBytes®

        VIRTUAL

        9:00 AM

        • Ask a VP of Sales: Live GTM Office Hours for Early-Stage B2B Founders: See Details Here
          Kat Rucker Consulting Group

        11:00 AM

        WEST HOLLYWOOD

        11:00 AM

        • The 10x Engineer Showed Up. The 10x Organization Didn't.: See Details Here
          Workflow Builder, Tentaro

        3:00 PM

        WESTSIDE

        11:00 AM

        2:00 PM

        • Graphic Design & Digital Printing Meetup: See Details Here
          Big Frog Custom T-Shirts & More of West LA

        7:00 PM

        WESTWOOD

        12:00 PM

        Each session provides unique opportunities to gain insights, network, and explore various fields of tech innovation. For updates or more event information, visit the official Tech Week calendar.

        Download the dot.LA App

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