Chris Brown / Rihanna Attack: Read Shocking New Documents

We're learning bombshell new details about the alleged altercation between R&B singer Chris Brown and his pop star girlfriend Rihanna.

RadarOnline.com has obtained a search warrant executed during the investigation. The warrant contains startling notes made from a detective assigned to the case.

According to the documents, here's what went down that night.

*Rihanna read a three-page text message on Brown's phone from a woman.

*An argument followed. Brown allegedly tried to force Rihanna out of the car.

*Brown then allegedly shoved Rihanna's head against the passenger window. Brown punched her, then continued punching Rihanna while driving.

*Blood splattered all over Rihanna's clothing and in the interior of the car. Her mouth was filled with blood. Brown allegedly told Rihanna, "I'm going to beat the **** out of you when we get home. You wait and see."

*Rihanna called her assistant and left a message saying, "I am on my way home. Make sure the cops are there when I get there." Brown allegedly then replied, "You just did the stupidest thing ever. I'm going to kill you."

*The report also says Brown punched Rihanna, bit her on her ear, her fingers and put her in a headlock.

Read the search warrant here.

RadarOnline.com also has exclusive photos inside the car where the alleged attack occurred. You can see Rihanna's blood stains splattered on the interior.