He is also known by the street name Tony Serious, from Toronto, according to a source who contacted The Guardian.
Summerside police say Dorsey is under a lifetime weapons prohibition order and he has also been charged with breach of that prohibition order.
Dorsey was arrested yesterday after police received information that he was staying at a Summerside motel.
The RCMP Emergency Response Team was used to arrest Dorsey “to ensure everyone’s safety,” because a firearm was alleged to have been used in the original incident, said the police force.
The Emergency Response Team is a joint forces unit made up of officers from the RCMP, Summerside Police Services and Charlottetown Police Services.
As well, the Crisis Negotiator Team was also brought in to help. It is also made up of specially trained officers from all three police agencies.
Dorsey was arrested without incident or injury.
Late Thursday night, police found a replica BB gun that is believed to be the weapon used in the robbery.
“Although this was a pellet gun, it looks very real and resembles a 9 mm handgun, similar to the guns police carry,” said the statement from Summerside Police Services.
Today in Summerside court, Dorsey was ordered to remain in jail until his next scheduled court date on April 18.
Summerside Police are continuing their investigation and is asking for any information people may have in relation to the incident.