50 Cent beefing with Floyd Mayweather. The beef between 50 Cent and Floyd Mayweather just got real nasty. 50 is now accusing Floyd Mayweather of sleeping with late friend Earl Haynes wife Stephanie Mosley triggering their murder suicide. If you don’t remember the tragedy according to TMZ Floyd was on facetime with Earl moments before the murder suicide took place. One version of the story was Floyd was trying to convince Earl to leave Stephanie because she was having an affair with Trey Songz, but 50 says that’s not how it went down at all.