UPDATE 06/16/20 11:11 a.m. -  Police have obtained an arrest warrant for Andrew Augustyniak-Duncan, 24, of Carnegie, PA. He is charged with three counts of Aggravated Assault, Riot, and three counts of Recklessly Endangering Another Person.

Augustyniak-Duncan is currently being held in Allegheny County Jail on separate charges.

The Damage Assessment and Accountability Taskforce (DAAT), comprised of local, state and federal law enforcement agencies, is seeking the public’s assistance in identifying the male in this series of photographs.

He is suspected of being involved in several criminal acts during the May 30 protests downtown around 6th and Wood Street, and is observed numerous times on camera throwing concrete, rocks and debris at police, one time striking an officer and causing a concussion. He is also believed to have looted at least one business.

The male, wearing a dark shirt and jeans and carrying a backpack, was observed outside Wood Street station after taking off his mask at one point.

Anyone with information is asked to contact the taskforce at DAAT@Pittsburghpa.gov, or call (412) 323-7800 and ask for the taskforce. Contributors will remain anonymous.