A federal jury trial began Monday to determine Tesla’s responsibility in a 2019 crash that killed a 22-year-old pedestrian and seriously injured her boyfriend.

A jury will decide whether Tesla is partly to blame for the death of a university student, after a runaway car sent her flying while she was stargazing. Naibel Benavides Leon and her boyfriend, Dillon Angulo, had got out of a Chevrolet Tahoe near Key West, Florida, to look up at the sky in April 2019.

Lawyers for the plaintiff argue the autopilot should have warned the driver and braked when his Model S blew through flashing red lights, a stop sign, and a T-intersection at nearly 70 miles an hour