Chris Brown has entered a rehab facility for anger management insures. The rehab is intended to help his deal with his tamper problems and probably to avoid a possible prison sentence. 

Sources told TMZ that Brown's attorney, Mark Geragos, dropped him off at a facility in Malibu. 

L.A. County probation dept. is going hard on a investigation to determine if Brown violated his probation the Rihanna case. 

If found that he did violate his probation then a judge could sentence him to as much as 4 years in prison. 

His mother and girlfriend karreuche accompanied Chris to the facility.