As the investigation continues on the Chris Brown/Rihanna domestic assault case, more details emerge that could shed some light on what took place on that fateful Sunday night. Yet another unnamed source spoke to the New York Daily News and attempted to provide some clarity on what took place prior to the fight.

The source claims that Brown received a “booty call” text from another woman while Brown and Rihanna were leaving Clive Davis’ party.

"He got a booty call. He got a text. Rihanna saw it and she got upset. They started to argue. She got out of the car. He wanted her to get back in, so he grabbed her," the industry source said. "She pulled away. That's when she's told people he hit her."

Since the incident, Brown has reportedly been trying to get a hold of Rihanna.

"Chris has been trying to contact her. So far she hasn't taken his call," the source continues.

With the sheer number of unnamed sources adding their two cents, everything to this point has been mere speculation. Without Brown nor Rihanna’s delivering oftheir personal accounts, nobody knows what really happened to set Brown off.

Some rumors that have been shot down include the two fighting over one giving the other an STD, Brown being upset at Rihanna for spending time with Timbaland at a pre-Grammy party and now the latest being the “booty call” text.

All that is known is that Rihanna suffered some surprising injuries that include a split lip and a black eye. No pictures of Rihanna’s injuries have emerged, so even the extent of the injuries is mired in speculation.

LAPD presented a case to prosecutors on Tuesday, but the District Attorney sent them back to the drawing board to acquire more concrete evidence. In cases such as this, what is called “witness work” is imperative because the victims often have difficulty testifying against their loved ones.

"These cases are often stymied by the refusal of victims to testify," attorney Alexandra Leichter, a Beverly Hills-based private arbitrator said to the New York Daily News. "If witnesses saw the victim before the attack, witnesses heard the screams and then cops came and she was bloodied, then the circumstantial evidence could be enough to convict."

Stay tuned to BET.com on this developing story.