A Boston man accused of shooting another man on Tremont Street near Boston Common in July has been arraigned on a string of firearm charges after police say he tried to ditch a stolen, loaded pistol during his arrest in Dorchester. Joseph Matthias was ordered held without bail following his August 28 arraignment in Boston Municipal Court Central, where prosecutors laid out how surveillance footage and ballistics evidence tied him to the shooting weeks before he was caught.
The shooting happened July 9 outside 141 Tremont Street near Temple Place, in the heart of Downtown Crossing, according to the Suffolk County District Attorney's Office. A man was struck and suffered non-life-threatening injuries, per the same account. Hoodline first reported on the shooting before a suspect had been identified. Investigators later linked Matthias to the scene using surveillance footage and ballistics evidence, according to a statement from the DA's office, and officers seized one round of ammunition matching a casing found at the shooting location, as well as the shoes, sweatshirt, and backpack Matthias was allegedly seen wearing that night.
Arrest Came Nearly Three Weeks Later in Dorchester
Matthias wasn't taken into custody until July 28, when officers moved to serve an arrest warrant and encountered him in Dorchester, according to The Boston Globe. Boston police say District 3 officers executing the warrant first spotted a man matching Matthias's description exiting a residence on Sutton Street carrying two duffel bags and a backpack before he took off on foot toward Woolson Street, per the Boston Police Department's account of the arrest.
Matthias allegedly dropped both duffel bags as he ran and then threw his backpack over a fence into a Woolson Street yard, according to the seed reporting. The DA's office says he ignored numerous verbal commands and, during the chase, shouted, “Yo, get the backpack and run!” to bystanders. Officers arrested him after a brief struggle, and one arresting officer sustained multiple minor lacerations in the process and was treated by Boston EMS, according to the Suffolk County District Attorney's Office.
Loaded Gun Traced to a Somerset Theft
Inside the discarded backpack, officers found a Beretta USA Corp. 9mm handgun loaded with eight rounds of ammunition, along with a magazine matching the firearm and personal papers bearing Matthias's name and image. A serial number search showed the weapon had previously been reported stolen out of Somerset, according to the Boston Police Department. Officers also seized additional personal papers with Matthias's name and image from his home.
Matthias now faces charges including carrying a loaded firearm without a license, carrying a firearm without a license, possession of ammunition without an FID card, a firearm violation tied to a prior violent or drug conviction, discharging a firearm within 500 feet of a building, and assault and battery with a dangerous weapon. He has remained in custody since his July 28 arrest in Dorchester and is due back in court September 18 for a probable cause hearing.
Suffolk District Attorney Kevin Hayden said in a statement that a shooting in any Boston neighborhood is intolerable and that his office will keep working with partners to find and charge those responsible. Hayden added that the case came together through detective work involving witness information, surveillance technology, and ballistics evidence.
A Violent Stretch Along a Landmark Corridor
Because of Massachusetts's Armed Career Criminal enhancements under M.G.L. c. 269 § 10G, carrying a firearm without a license after a prior conviction for a violent crime or serious drug offense carries a mandatory minimum of three years and up to 15 years in state prison, according to the Massachusetts General Court. Even without that enhancement, unlicensed carry outside a home or business under M.G.L. c. 269 § 10(a) carries a non-suspendable minimum of 18 months in a house of correction or 2.5 years in state prison, per Aprodu Law, meaning Matthias faces significant prison exposure if convicted.
The July 9 shooting fell within a tense stretch for Downtown Crossing. Neighborhood advocates reported that five people were shot within a half-mile of the Tremont Street corridor and Boston Common over a 16-day span in late June and early July, according to the Boston Herald, prompting community groups to send formal letters demanding city action. Hoodline also covered related incidents nearby, including a shooting on Bromfield Street and a police response near Boylston Station, both within days of each other.
City officials, community groups, and law enforcement responded in August by forming the One Downtown Task Force, which deploys coordinated block-by-block patrols from Boston Police, Transit Police, and private security across Downtown Crossing, according to CBS News. The effort followed growing public pressure on municipal leaders to increase visible police presence in the district.
Citywide Numbers Tell a Different Story
The localized alarm along Tremont Street contrasts with citywide trends. Major Cities Chiefs Association midyear statistics showed Boston homicides fell 52 percent in the first half of 2026 compared to 2025, dropping from 21 to 10, even as aggravated assaults rose 7.3 percent to 1,240 reported incidents, according to Axios. Earlier in the year, Boston Police Department statistical reports showed overall shooting victims and gunfire incidents running more than 30 percent below their five-year historical averages, per Alarm New England.
Those broader numbers don't erase what happened outside 141 Tremont Street, but they do frame a summer in which a handful of highly visible incidents in one commercial corridor drove much of the public anxiety even as citywide violence, measured in fatalities, hit historic lows. For now, Matthias remains held without bail as his case moves toward next month's probable cause hearing.
