VH1 Star, Stephanie Moseley, DEAD alongside Rapper Boyfriend, Earl Hayes in Murder-Suicide....

Earl Hayes (one of Floyd Mayweather's best friends) and Stephanie Moseley (Hit The Floor Dancer) have unfortunately passed away in a shocking murder-suicide involving the couple.

According to TMZ:

"We're told residents at a swanky L.A. apartment complex near The Grove heard shots ring out early Monday morning. The SWAT team raced to the scene and knocked down the door of an apartment ... and found 2 people shot to death.  

The rapper Earl Hayes -- who was once signed to Mayweather's record label -- often partied with Floyd. Moseley has been a backup dancer with numerous singers, including Chris Brown and Britney Spears. It's unclear who shot who ... but residents heard a woman screaming.   

Sources connected with Moseley and Hayes tell TMZ ... he had accused her of infidelity with a famous singer.