The saga of domestic abuse for superstar Rihanna apparently all started this past weekend with a fight and then some death threats which were coming from her boyfriend Chris Brown.

They began squabbling after leaving Clive Davis’ pre-Grammy party late Saturday. Shortly after midnight, things blew up. Brown pulled his silver Lamborghini to the side of a street in L.A.’s Hancock Park neighborhood. That’s when, per the source, Rihanna grabbed the car keys and tossed them out the window, sending Brown into a rage.

He tried in vain to find the keys, then came back to the car, put his hands around her neck and, according to the insider, said, “I’m going to kill you!”

According to reports, Rihanna was beaten unconscious, and when she awoke, severely injured, was taken to the hospital after someone called 911. Reports are sketchy and conflicting, but The Huffington Post, which is doing a good job of compiling all of the information, has published accounts that the singer was bloody and exhibited bite marks.

Chris Brown turned himself in on Sunday and is being held on $50,000 bail. A party planned for Rihanna’s 21st birthday has been cancelled, as has an upcoming concert in Malaysia. Brown has also lost a contract with Wrigley’s gum as a result of the incident.

Rihanna is reportedly cooperating with police on the case, according to the L.A. Times.

Via / The Huffington Post, multiple sources