In dashcam video posted by the ACLU, police officer Joe Joswiak pulls over Anthony Promvongsa, driving a dark SUV. Joswiak immediately approaches the vehicle screaming "get out of the car motherfucker!", with his gun drawn and posed sideways. Then he starts pounding and kicking at Promvongsa through the open car door — before Promvongsa seems to have a chance to do anything.

The inexplicably violent attack occurred on July 28, 2016. According to police reports, Promvoska "was attempting to pass" an off-duty officer and swerving aggressively, backup was called, and Joswiak spotted the vehicle first.

Promvongsa's attorney finds it odd that none of that was caught on any camera along the route. Audio is missing from much of Joswiak's dashcam recording, too, for no given reason — another officer is observed turning it off during the attack.