The LAPD reportedly wants to interview Floyd Mayweather Jr. after the murder-suicide perpetrated by his friend, Earl Hayes.  TMZ reported investigators believe Mayweather spoke to Hayes on the phone shortly before Hayes murdered his wife, Stephanie Moseley, and then turned the gun on himself.

Floyd is not a suspect in the case, but police want to interview him and find out what happened in the time leading up to the murder-suicide.  According to TMZ, Floyd was on FaceTime Monday with Hayes, whom he allegedly said was weak for not leaving Moseley after her infidelity, and could have been a witness to it.

Per TMZ:

"Floyd Mayweather whipped his friend Earl Hayes into a frenzy over his wife's infidelity ... to the point Hayes gunned her down ... and now the LAPD wants to sit the boxer down for questioning ... multiple sources tell TMZ.

"TMZ broke the story ... Floyd was on FaceTime with his rapper friend Monday morning when the shots were fired. Now we're told, Floyd was telling Hayes he should leave his wife, Stephanie Moseley -- a well-known backup dancer and star of VH1's "Hit the Floor" -- because she was bad for his career.

"As we reported, Hayes was distraught over what he believed was repeated infidelity, including a fling he said Stephanie had with Trey Songz.

"One Mayweather source says Floyd challenged Hayes, saying he was weak for not leaving her.

"At that point, as Floyd was on FaceTime, Hayes went off and said he was going to gun down Stephanie. We're told when the boxer realized Hayes was going to shoot Stephanie, he begged Hayes not to go through with it."

Hayes then went into the bathroom and fired 10 to 12 shots at Moseley, who was taking a bath, according to TMZ.  At that point, Hayes then went into the bedroom and took his own life with the firearm.