Def Jam executive vice president Shakir Stewart committed suicide today (Nov. 1) in New York, according to sources. No other details were available at deadline.

Stewart succeeded Jay-Z at the top of the Def Jam ladder in June and also retained his duties as senior VP of A&R at Island Def Jam. The Oakland, Calif., native signed such artists as Rick Ross, Young Jeezy and newcomer Karina Pasian.

Stewart cut his teeth as a music executive at Hitco Music Publishing, where he was creative director and later senior VP of creative/GM and signed Beyonce Knowles.

Even before he gained a rep for promoting rap concerts during his Morehouse College days, Stewart was “the guy who was the head of passing out fliers at seven clubs a night, seven days a week in 20-degree weather,” he told Billboard this summer.

Stewart said at the time it was his goal to help develop “new, young executives … The hot executive who’s 21, 22 years old and has a serious passion for music and the desire to work 27 hours a day. That’s where I was at that time in my life. And that’s who I’m looking to mentor. I don’t see many people like that. Instead, I see a lot of kids who want to live the lifestyle but don’t want to put in the work and do what it takes.”