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.

Before launching Murder Inc. in New York City in 1998, Gotti worked as an A&R at Def Jam, where he helped bring DMX, Jay-Z and Ja Rule to the label. Under the moniker DJ Irv, he produced the song “Can I Live” from Jay-Z’s 1996 debut, Reasonable Doubt.

Irv Gotti, who founded Murder Inc. Records and produced albums for Ja Rule, Ashanti, and DMX, has died. He was 54. The Hollywood Reporter first reported the news on February 5. Def Jam Recordings also confirmed Gotti’s death,