The arrest of Keefe D for his involvement in the murder of 2Pac Shakur has put the 1996 killing back in the spotlight.

That's never good news for Diddy, who was beefing with Pac at the time of his death.

Folks like 50 Cent believe Puff had something to do with the murder and may be in trouble if Keefe starts talking.

According to Pac's brother Mopreme Shakur, Diddy called him about 15 years ago to deny he had anything to do with the killing.

"The boy Puffy called me, though," Mopreme Shakur's on The Art of Dialogue. "Puffy called me back in the day. 'I just want you to know I ain't have nothing to do with your brother. I know who you are but we never met, I just wanted to call you. Man to man, tell you that, you know, that I had nothing to do with your brother's death.' Now why was he calling me, reaching out to me? Because LA Times had just dropped, in the early 2000s, an article [actually 2008] in the newspaper implicating him as well. I told him I appreciate the call, but the truth is yet to come out, so we gonna see."

Will the truth finally come out?