Prosecutors say Damel Burton was also charged with attempted murder. He's being held Saturday and there wasn't any information on his attorney.
Passengers on the Q111 bus were screaming and surging toward the front doors after a man opened fire Friday, killing one and wounding another.
Prosecutors say 36-year-old Marvin Gilkes was shot in the back of the head and died at the scene. A 29-year-old was struck in the face but survived and is in stable condition.
Queens district attorney's office says that before boarding the bus, Burton first shot at an 18-year-old inside a nearby apartment.
The teen jumped out of a rear window but later died from his injuries.
"I don't know what happened," Burton's live-in girlfriend Sheena Tucker said.
Accused killer Damel Burton's live in girlfriend, Sheena Tucker says she never knew Burton had a gun, never knew he'd was capable of such violence.
She says Burton never had a history of mental illness as far as she knew.
Her 18-year-old son, Keith Murrell was allegedly the first victim.
The Queens Academy Senior was shot in the chest and killed in their apartment on Foch Boulevard in Saint Albans allegedly by a man her children say was like a father.
"He was kind to me, yes. He treated me like one of his," the victim's brother Tysheen Tucker said.
From the bloody scene at the home, police say Burton then boarded the Q111 bus where he continued his spree.
Burton reportedly told police he would have shot more people, but his gun jammed.
He's being held without bail.