Boston Police arrested a 28-year-old suspect on firearms charges Saturday night in Dorchester.

Dequan Mitchell, of Mattapan, faces four gun-related charges, including carrying a firearm and loaded firearm without a license and possession of firearm and ammunition without a Firearm Identification card.

Officers arrested Mitchell after responding to a call of individuals loitering in front of a store around 146 Dorchester Ave. at about 10:50 p.m. When police arrived, they say an individual later identified as Mitchell quickly walked away from the group with his right hand holding something against his body.

Police stepped out of their vehicle to approach the suspect, who they say kept walking at a fast pace. After seeing that Mitchell had a black metal object coming out of his jacket, off

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