Records co-founder Irv Gotti on Wednesday (Feb. 5), tributes poured in from the hip-hop world, including from the label where he got his start, Def Jam. Gotti started out in A&R at the hip-hop label,

The producer helped shape rap and R&B after founding the label Murder Inc., which launched artists like Ja Rule and Ashanti.

Irv Gotti, the hip hop producer and music executive who co-founded the Murder Inc. label and was instrumental in the rise of stars like DMX, Ja Rule and Ashanti, died Wednesday. He was 54. His cause of death has not been made public,