 Times Online | Rihanna assisting police in Chris Brown case Los Angeles Times - A fight in Hancock Park after a pre-Grammy Awards party left the R & B singer with bruises and a scratched face, police say. By Richard Winton and Harriet Ryan R&B star Rihanna is cooperating with investigators building a domestic violence case against ... Pop Star Chris Brown | LA Police | Accused | Domestic Abuse ... Wrigley suspends Chris Brown ads |