Police raced to the couple's L.A. apartment early Monday after neighbors reported hearing shots fired. A SWAT team found Moseley and Hayes dead at the scene.
TMZ reports that Floyd Mayweather was facetiming with Hayes when the horrifying crime occurred. Sources say the rapper called Mayweather in a rage, saying his wife cheated on him and that he was going to kill her.
Mayweather tried to talk him out of it, to no avail. Instead, Hayes walked into the bathroom and shot Moseley 10 to 12 times while she was taking a bath. When police arrived on the scene, they heard one more shot. Presumably Hayes taking his own life. His body was found in the bedroom.
Insiders say Mayweather hasn't gone into detail about how much he saw, but confirmed he was a witness and heard everything.
Hayes was a member of Floyd Mayweather's lifestyle brand called the Money team, and was at one time signed to Mayweather's record label.
According to TMZ, Hayes had accused Moseley of cheating with Trey Songz and other famous artists.
After news broke about the murder-suicide, Trey Songz tweeted, “R.I.P babygirl. Once an angel on earth, now watching over us from Heaven. You'll b missed but never forgotten. Love.”