Three Quincy teens arraigned in unprovoked attack on group at Kenmore MBTA Station

BOSTON, May 21, 2024 – Three teenagers from Quincy were arraigned last week in connection with an attack earlier this month on a group of Duxbury teens at the Kenmore Square MBTA station that left several of the victims with facial injuries, District Attorney Kevin Hayden announced.

AIDAN McGUINNESS, 18, was charged in Roxbury BMC on Friday with unarmed robbery and assault and battery causing serious bodily injury.  Judge Maureen Flaherty imposed $1500 bail and ordered McGuinness to stay away from the victims.  McGuinness will return to court June 24 for a probable cause hearing.

The two juveniles, both 17, were arraigned in Suffolk Juvenile Court on Thursday.  One was charged with two counts of assault by means of a dangerous weapon (knife), one count of assault and battery causing serious bodily injury, one count of unarmed robbery and one count of assault and battery. The other was charged with assault and battery with a dangerous weapon (cement floor), assault and battery causing serious bodily injury and unarmed robbery.

Judge Peter Coyne ordered both juveniles held on $200 bail and also ordered them to stay away from the victims and stay away from Kenmore MBTA station. The juveniles will return to court June 24 for probable cause hearings.

At about 10:14 p.m. on May 10, transit police responded to Kenmore Station for a call about an assault. They spoke with four victims, all teenagers from Duxbury, who said they had been attacked by a group of people unknown to them.  Three of the victims were bleeding from their mouths and the fourth had blood on his clothing and on his knuckles.

The victims said one of the attackers lifted his sweatshirt and displayed a knife with a black handle in his waistband.  The victims stated they were punched and thrown to the cement floor.  One of the victims reported that his jacket and sneakers were stolen.

MBTA police recovered the jacket near the location of the assault.  It had been destroyed.

Police reviewed station video and cell phone video showing the victims being attacked by McGuinness, the two juveniles and two others, who have yet to be identified.  The video corroborated the victims’ account of the attack. The victims also provided descriptions of the attackers.

Video shows McGuinness pushing one of the victims as the victim is being struck by another attacker. McGuinness and others are seen striking the victim multiple times while the victim is on the ground. McGuinness is also seen taking the victim’s jacket.

Police were assisted in the identification effort by a person who saw a Snapchat video of the attack sent to about 60 recipients.  The viewer recognized McGuinness and other attackers as high school students from Quincy.  Police followed up on the various video evidence and, with the help of Quincy school officials, identified McGuinness and the two juveniles.

Hayden praised transit police for their work on the case and also praised the victims and the public for helping provide identifying information.

“These individuals may have thought they could launch a brutal and unprovoked attack on a group of young people and get away clean, but the tenacity of transit police combined with help from the victims, the public, and video and social media evidence proved them wrong. These victims endured a terrifying experience and suffered serious injuries while doing nothing more than enjoying an evening in Boston.  Their attackers will answer for their actions,” Hayden said.

 All charged individuals are presumed innocent until and unless proven guilty beyond a reasonable doubt.

Suffolk County District Attorney Kevin Hayden’s office serves the communities of Boston, Chelsea, Revere, and Winthrop, Mass. The office handles over 20,000 cases a year. More than 160 attorneys in the office practice in nine district and municipal courts, Suffolk Superior Court, the Massachusetts Appeals Court, the Supreme Judicial Court, and the Boston Juvenile Courts. The office employs some 300 people and offers a wide range of services and programs to serve anyone who comes in contact with the criminal justice system. This office is committed to educating the public about the services we provide, our commitment to crime prevention, and our dedication to keeping the residents of Suffolk County safe.

James Borghesani, Chief of Communications

SCDAO