The video shows four muzzle flashes from an agent's gun as he fired at Allen, but it was not immediately clear whether it showed Allen discharging his weapon after he pointed it at the agent.
The Special Investigations Unit stated that officers were on Second Street to preserve peace while municipal staff removed an illegally set up fence by Daniel Tronko, who fired multiple rounds at an officer.
A gangland enforcer, previously suspected of killing a man, is now being questioned regarding the attempted murder of Alexis Lee Campion, who was set on fire.
A 20-year-old Syrian refugee has been sentenced to 13 years in prison for attempted murder and other charges. He stabbed a 30-year-old Spanish tourist in the neck at Berlin's Holocaust memorial last year. The victim sustained life-threatening injuries, requiring emergency surgery and an induced coma.
When one of two victims confronted him and asked him to leave, Strawn got into the passenger seat of a friend's Pontiac and fired multiple rounds from an illegal assault rifle as the vehicle drove away. No victims were struck. Authorities said the rifle jammed after several rounds were fired.