The County of Los Angeles, Department of Coroner reports today that Scott Ruffalo, who died last December from a single gunshot wound to the top of his head, had very slight traces of cocaine, alcohol and morphine in his system.

“Basically he wasn't under the influence,” said Assistant Chief Ed Winter.

The 39-year-old hairstylist and brother of actor Mark Ruffalo

was found unconscious in his home December 1. At the time, there

were questions whether Ruffalo was mortally wounded from a self-inflicted gun shot

or if he had been murdered. Shaha Mishaal Adham, 26, was taken into

custody on a warrant of attempted murder by the Beverly Hills Police

Department in connection with the shooting, but was released December 8 — the

same night that Ruffalo was taken off life support at

Cedars Sinai Hospital.

According to news reports, Adham claimed that Ruffalo shot himself

during a game of Russian Roulette. The coroner later ruled that his

death was determined to be a homicide, but toxicology results were

pending.

“Injuries to the brain, although not immediately

fatal, were irreversible and subsequently caused death,” opined deputy

medical examiner Juan Carrillo. “The injury appears inconsistent with

the history provided by witnesses and further police investigation  has

failed to clear up these inconsistencies. Therefore the manner of death

is homicide until proven otherwise.”

According to the autopsy report, detectives also recovered a .38 caliber revolver with one round fired from the weapon.

Older brother Mark Ruffalo, 41, is best known for his roles in Zodiac, Collateral and Eternal Sunshine of the Spotless Mind. Because of his personal tragedy, Ruffalo has been replaced by actor Ben Stiller in the upcoming feature Greenburg.