On August 28, 2009, the Los Angeles County Department of Medical Examiner-Coroner concluded that Jackson's death was a homicide.[2] Jackson had been administered propofol and anti-anxiety benzodiazepines lorazepam and midazolam by his doctor.[3] Murray was convicted of involuntary manslaughter in November 2011, and was released in 2013 after serving two years of his four-year prison sentence with time off for good behavior.[4][4]