After Columbine: The Unsolved Murders of Nick Kunselman & Stephanie Hart-Grizzell

After Columbine: The Unsolved Murders of Nick Kunselman & Stephanie Hart-Grizzell

From Serial Napper | True Crime for the Chronically Tired by Cloud10

April 10, 2026 · 39 min

About this episode

The episode explores the unsolved murders of two teens who survived the Columbine shooting and were later found dead in a Subway restaurant.

On February 14th, 2000—Valentine’s Day—15-year-old Nicholas “Nick” Kunselman and 16-year-old Stephanie Hart-Grizzell were found shot to death behind the counter of a Subway restaurant in Littleton, Colorado. Just ten months earlier, both teens had survived the Columbine High School shooting. They were part of a community still trying to heal… still trying to move forward. That night was supposed to be simple. Nick was finishing his shift. Stephanie had stopped by to wait for him. But sometime between closing time and just before 1:00 AM… something happened inside that restaurant. A coworker noticed the lights were still on. She saw a man leaving through the back...And moments later, she walked in to find both teens dead. Investigators have spent decades chasing leads, reviewing evidence, and re-testing DNA. The case file now spans dozens of binders, with hundreds of interviews and over 150 pieces of evidence. Theories have ranged from robbery to a targeted attack to rumours of a possible drug connection… but none have held up. What remains is a narrow window of time, a fleeting sighting of a possible suspect, and one persistent belief from investigators: Someone knows what…

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Places: Littleton, Colorado

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