About 3:14 PM, on Wednesday, August 19, 2026, officers assigned to District C-11 (Dorchester) responded to a radio call for a shot spotter activation in the area of 719 Washington Street. Multiple Boston Police Units including SWAT, K-9, and the Youth Violence Strike Force also responded for assistance.
Upon arrival, officers located ballistic evidence in front of Roslin Street, which directly intersects with 719 Washington Street. District Detectives were requested to respond and process the crime scene. A description of the involved suspects and a suspect vehicle were broadcasted to all responding units.
A vehicle matching the description was seen traveling on Washington Street towards Melville Street. The vehicle fled from officers at a high rate or speed and was last seen in the area of Waldeck Street.
Multiple officers began to search the area and observed a suspect running through backyards on Tonawanda Street. A foot chase ensued, and the suspect was seen jumping over a fence into the backyard of 111 Tonawanda Street. The suspect was placed under arrest, and two officers sustained minor injuries during the arrest. Both officers were transported to local hospitals with non-life threatening injuries.
Members of the Youth Violence Strike Force observed the fleeing vehicle crash at the intersection of Tonawanda Street and Greenbrier Street. Officers removed the driver from the vehicle and placed him into handcuffs. The suspect was transported to a local hospital with non-life threatening injuries.
Boston Police K-9s were requested to search the suspect’s flight path. Officers recovered a firearm from the backyard of 119 Tonawanda Street. The firearm was determined to be a Glock 27, a magazine capable of holding twenty-two rounds of ammunition.
After further investigation, detectives also determined that the involved vehicle’s license plates had been reported stolen.
Seth Porong, 19, of Brighton, is expected to be arraigned in Dorchester District Court for:
– Reckless operation of a motor vehicle
– Receiving stolen property
– Receiving a stolen motor vehicle
– Operating a motor vehicle with a suspended license
A 16-year-old juvenile male, is expected to be arraigned in Boston Juvenile Court for:
– Delinquent to wit; Unlawful possession of a firearm
– Delinquent to wit; Possession of a large capacity feeding device
– Trespass
The juvenile male also had multiple warrants for his arrest on charges of assault and battery with a dangerous weapon, assault and battery, larceny over $1,200, and firearm offenses.