Three Boston teenagers who are allegedly affiliated with a gang were ordered held yesterday in the stabbing of another teenager inside the Back Bay MBTA station earlier this month, authorities said.
Two of the suspects, a 16-year-old from Charlestown and a 15-year-old from Dorchester whose names were withheld because they are juveniles, pleaded not guilty yesterday in Boston Juvenile Court.
The third suspect, identified as Manuel Valette, 17, pleaded not guilty in Boston Municipal Court, said Suffolk District Attorney Daniel F. Conley and a spokesman for the Transit Police.
Each youth was charged with assault with intent to murder, aggravated assault and battery with a dangerous weapon, assault and battery with a dangerous weapon (shod foot), and assault and battery.
Valette, a student at East Boston High School, and the two others are accused of attacking a 17-year-old West Roxbury resident about 4 p.m. on Feb. 19, stabbing him nine times. The victim has been released from a hospital and is recovering at home, said Joseph Pesaturo, spokesman for the T police and the MBTA.
"The evidence suggests that they pulled the victim's sweatshirt over his head and attacked him; beating, kicking, and stabbing him," said Jake Wark, spokesman for Conley's office.
Valette was ordered held on $250,000 cash bail and is due back in court March 26. The two juveniles, who attend Brighton and English High School respectively, were ordered held on $100,000 cash bail, required to surrender their passports, and told to appear in court again on March 20, Wark said.
"Transit Police investigators believe it is gang-related, in the sense that the suspects are affiliated with a gang" that draws from the Dominican community, Pesaturo said. "The victim, they have determined, has no ties to a gang. But the victim apparently had trouble with a person associated with the gang or who is in a gang."
The stabbing involved as many as 10 attackers, police have said. Pesaturo said yesterday that the suspects were identified with the help of the MBTA's surveillance camera system. Authorities said the investigation is ongoing.
The T released an image from a surveillance camera that police said showed Valette as he entered Back Bay station at 3:56 p.m., moments before the victim was attacked, T police said.
Globe correspondent Michael Naughton contributed to this report.