Rapper Troy Ave in custody following fatal shooting
WPIX - "Investigators are looking at surveillance tape, which shows the shooter with the gun."

via WPIX:

NEW YORK -- (WPIX) -- Rapper Troy Ave is in custody following the deadly shooting at T.I.’s concert at Irving Plaza Wednesday night, according to police sources.

The shooting began Wednesday night in the venue’s VIP area on the third floor before headliner T.I. was set to perform.

It left Ronald McPhatter, 33, dead, and three others hospitalized — a 34-year-old man who was shot in the chest, a 26-year-old woman shot in the leg, and a 30-year-old man, identified as rapper Troy Ave, who walked himself to a local hospital with a gunshot wound to the leg.

FULL STORY: Bullets fly during rapper T.I.'s NYC concert: 1 dead, 3 injured - WPIX