Boston police leaving courthouse arrest suspect who allegedly brandished gun

Boston police officers arrested a 23-year-old man seen holding a loaded firearm outside Dorchester District Court on Friday, police say.

Police officers arrested Roberto Valladares at around 10:38 a.m. near the intersection of Washington Street and Tremlett Street for firearm related charges, according to a statement from the Boston Police Department.

Officers had exited the courthouse and were waiting to participate in a court proceeding when they saw Valladares pointing the firearm at people in front of him before securing it in his waistband and continuing down Tremlett Street, the statement said.

Valladares ran across Washington Street toward West Tremlett Street after they commanded that Valladares drop the gun, authorities say. 

Officers chased Valladares into a fenced private yard where he “ran towards the back of the yard, and with a throwing motion, launched the handgun over a chain link fence and immediately faced Officers in a fighting posture disobeying all commands,” police said.

Officers reported recovering the firearm — a Glock 19 loaded with one 9mm round in the chamber and 11 rounds loaded in the magazine — and arrested Valladares, who is expected to be arraigned in District Court for the charges of possession of a large capacity firearm, carrying a loaded firearm without a license, carrying a firearm without a license, unlawful possession of ammunition, and assault with a dangerous weapon.