Overview

• A 16-year-old student was arrested at Philip Randolph Campus High School after a school safety officer found a loaded gun in his backpack, following a tip.
• The teenager has been charged with murder, manslaughter, assault, and weapon possession in connection with the April 17 fatal shooting of Christopher Jimenez, 34, in Harlem.
• Authorities allege the teen shot Jimenez in the chest after an argument in the lobby of the Manhattanville Houses; the victim later died at Mount Sinai Morningside.
• The suspect pleaded not guilty during his May 1 arraignment and is being held without bail until his next court appearance on May 6.
• Investigators are examining the teen's connections to Jimenez and an earlier suspect, Angel Celpa, who was initially arrested for assault and weapons possession but not murder.