NEW YORK (CBSNewYork) — A fifth suspect was arrested and charged Thursday in connection with the assault of two NYPD lieutenants on the Brooklyn Bridge last month during protests of the Eric Garner grand jury decision.

Jarrod Shanahan, 29, was charged with two counts of assault on a police officer, as well as resisting arrest, obstructing governmental administration, and rioting in the incident on Saturday, Dec. 13.

Shanahan was identified as “unknown male number two” in video stills from the incident, police said.

The melee began when police arrested Baruch College professor Eric Linsker. Investigators said he triggered the melee when he tried to throw metal garbage cans over the bridge railing at officers.

Four other suspects – Cindy Gorn, Zachary Campbell, Maria Garcia and Robert Murray have also been charged in the incident.

NYPD Chief of Manhattan Detectives William Aubry said Murray is the man seen punching Lt. Philip Chan twice.

“His acts are violent, and they’re right up there with being one of the most violent acts that I’ve seen,” said Aubry.

Two suspects still remained at large Thursday.

Anyone with information about the suspects or anyone who has additional cell phone photos or videos is asked to contact Crime Stoppers at 800-577-TIPS (8477), visit the Crime Stoppers website or text tips to 274637 (CRIMES) then enter TIP577. All calls are strictly confidential.

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