Irving Lorenzo Jr.—known to the music world by his professional name, Irv Gotti—has died. Through his work, first for Def Jam Records, and then as the co-founder (with his brother Chris) of Murder Inc.

Irv Gotti, the music mogul who built Murder Inc. Records into a dominant force in early 2000s hip-hop and R&B, has died at 54. The cause of death hasn’t been confirmed, but the producer had suffered strokes and diabetes-related issues.

Irv Gotti, the music executive, songwriter and producer behind the reign of hip-hop and R&B stars Ja Rule and Ashanti in the early 2000s, has died. Gotti, the music mogul who co-founded Murder Inc. Records, was 54.