At about 4:30 PM on Monday August 27, 2018, officers assigned to District B-2 (Roxbury) arrested Joshua Carvalho, 20, of Roxbury, on firearm related charges after a foot pursuit which concluded in the area of 50 Monadnock Street in Dorchester. The officers were conducting an investigation in the area of 516 Columbia Road and were approaching the suspect when he suddenly took off running. Officers pursued the fleeing suspect and observed him pull a firearm out of the waistband of his pants and discard it on the sidewalk. One officer remained with the firearm which was determined to be a loaded 9mm Bryco Arms Jennings 9 handgun while the second officer continued to pursue the suspect on foot. The officer was eventually able to catch up to the suspect and place him in custody after a brief struggle. The suspect will appear in Dorchester District Court on charges of Unlawful Possession of a Firearm, Unlawful Possession of Ammunition, Carrying a Loaded Firearm and Possession of a Large Capacity Feeding Device.