(NEWSER) – At around 8pm on Feb. 28, Michigan 17-year-old Deven Guilford flashed his brights at an Eaton County Sheriff's sergeant's SUV because he thought the SUV's high-beams were on, which made it hard for him to see. Sgt. Jonathan Frost turned around and pulled Guilford over, and the traffic stop ended with the unarmed Guilford dead after being shot seven times by Frost.

The Eaton County Prosecutor ultimately cleared Frost of any criminal wrongdoing, and now, four months after that, Guilford's family has filed a federal lawsuit against Frost and the county, the Detroit Free Press reports. "Deven's tragic and totally unnecessary death represents a disturbing trend of demanding 100% compliance with police authority, coupled with zero tolerance of risk of harm to police officers," says an attorney from the law firm representing the family. The lawsuit seeks a jury trial.

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