CLAYTON, Mo. (AP) — Authorities say the 20-year-old man charged in the shooting of two St. Louis area officers had been at the protest earlier that night.

St. Louis County Prosecutor Robert McCulloch said 20-year-old Jeffrey Williams is charged with two counts of first-degree assault, one count of firing a weapon from a vehicle and three counts of armed criminal action.

The officers were shot early Thursday outside of the Ferguson Police Department during a protest hours after the city’s police chief resigned in the wake of a scathing federal Justice Department report.

McCulloch also said Williams told police he was firing at someone in which he was in a dispute, not at the police officers.

The officers were released later Thursday.

St. Louis County Police Chief Jon Belmar said Williams is black.

Williams is being held on $300,000 bond.