Update: Moon Robbery Investigation Spawns SWAT Standoff in Brentwood

A Brentwood man is being treated this morning at UPMC Mercy Hospital for an injury he received during an hours-long standoff with police who were investigating an armed robbery Sunday at a Moon grocery store.

Police did not immediately release the man's name or the nature of his injury after taking him into custody late Sunday. Authorities said he may have suffered a self-inflicted wound during the standoff, which lasted for several hours at a house at 103 Beisner Ave.in Brentwood.

Investigators went to that house Sunday afternoon while searching for a black sport-utility vehicle they believed was used by the man who held up the Citizens Bank branch in the  in Moon at 12:15 p.m. In that case, a man wearing shaded glasses walked into the bank and presented a note to a teller stating that this was a robbery,  said.

Police said the teller gave the man money, which contained an exploding dye pack. He left the store with an undisclosed amount of money, police said.

Witnesses outside the  reported seeing a cloud of red smoke in the parking lot and a large black sport utility vehicle—possibly a black Cadillac Escalade—leaving the area, police said. Money stained with red dye was found in the same area, police added.

Moon Police summoned the Federal Bureau of Investigation to investigate the armed robbery. Later Sunday afternoon, police went to the Brentwood house to investigate a report of a suspicious vehicle.

That prompted Brentwood officers to notify the FBI and then the Allegheny County Police SWAT team, authorities said. Police also shut off streets around the house while the man remained holed up there into the evening, authorities said.

At 9:51 p.m., police fired canisters of tear gas into the house. They took the man into custody at 11:29 p.m. and took him in an ambulance to the hospital.

Neighbors would not comment on the evening's events. Moon police this morning said they would have no information on potential charges until later today.

Witnesses to the bank holdup in Moon described the robber as a white male standing about 5-foot-5, with a beard and what appeared to be a fake moustache. He was wearing a blue bandana on his head, shaded glasses and a red hooded sweatshirt, police said.

The grocery chain remained open and busy throughout the afternoon. Store management declined to comment on the incident. 

Moon Police ask anyone with information related to the incident to contact them at 412