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 producer and music industry mogul who launched the careers of Ja Rule and Ashanti, has died at the age of 54, according to the Hollywood Reporter and sources close to the situation. A cause of death has not been confirmed,

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.