A 21-year-old Dorchester man was arrested last Friday on charges connected to a shooting incident last summer that disrupted the graduation at Charlestown High School. Austilino Pereira was taken into custody by officers attached to the BPD’s Youth Violence Strike Force and later arraigned for several gun violations, including “discharging a firearm within 500 feet of a dwelling.” Pereira is the fourth person arrested since the June 13 incident, in which gunfire erupted outside the ceremony held at the school. No one was injured, Detectives say they have recovered three firearms during their investigation.

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Boston Police arrested an 18-year-old Dorchester man for armed robbery after he was alleged to have tried to steal a backpack from a group from UMass playing cricket in Harambee Park on Monday afternoon. The players say that when they gave chase to the suspect— Kenneth Velasquez Garcia— he pulled a knife on them. Police say they found a knife on him when they made an arrest a short time later on Standish Street. He is due to be arraigned this week in Dorchester District Court.

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The annual Boston Firefighters Local 718 Memorial 10k road race will take place this Sun., Oct. 16, at 9 a.m. from Florian Hall. The course follows a route through Dorchester, including Morrissey Boulevard and the Neponset Greenway. It will be followed by a party at Florian Hall, including a live band. Go to bfdrelief.org/events for more information on registration and sponsorships.

The event is billed as a “celebration of their lives while raising money for the Boston Fire Department Relief Fund. Over the past decade, heart disease and cancer have accounted for most on-duty firefighter deaths.” All proceeds from the race will benefit the fund’s Cardiovascular and Cancer Screening Initiative.