A man has been convicted of murder after admitting he fired into a crowd outside a Manhattan apartment building. A bystander — a 17-year-old girl — was killed.

Boris Brown faces up to life in prison after Monday's verdict.

Co-defendant Devon Coughman was acquitted of murder and some other charges but convicted of weapon possession.

The prosecutor said the two were seeking revenge after being held up on Oct. 3, 2010.

The 22-year-old Brown told police he'd fired at the crowd but didn't mean to kill bystander Cheyenne Baez.

Brown's lawyer argued that the confession was coerced. The defense said that even if were valid, the shooting didn't meet legal standards for murder.

Coughman's lawyer said his 24-year-old client didn't know Brown had a gun.

NewsdayTV goes behind the scenes of the Gilgo Beach investigation, revealing the shocking findings in the year since the arrest of Rex Heuermann. NewsdayTV's Ken Buffa reports.

Unearthing a suspect: The Gilgo Beach killings NewsdayTV goes behind the scenes of the Gilgo Beach investigation, revealing the shocking findings in the year since the arrest of Rex Heuermann. NewsdayTV's Ken Buffa reports.

NewsdayTV goes behind the scenes of the Gilgo Beach investigation, revealing the shocking findings in the year since the arrest of Rex Heuermann. NewsdayTV's Ken Buffa reports.

Unearthing a suspect: The Gilgo Beach killings NewsdayTV goes behind the scenes of the Gilgo Beach investigation, revealing the shocking findings in the year since the arrest of Rex Heuermann. NewsdayTV's Ken Buffa reports.

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