The official autopsy report for Sons of Anarchy actor Johnny Lewis has been released.

The 28 year-old was found dead in the driveway of his Los Feliz residence in September, along with his 81 year-old landlady who is believed to have been killed by Lewis. Due to lack of evidence that he jumped or was pushed, the report states that his fall from the roof of his home was an accident - not a suicide, as what was previously thought.

"He appears to have jumped from an elevated terrace to the driveway while attempting to flee the scene. During the approximately 15-foot drop he apparently lost his balance or struck an object. This caused him to land so his head impacted the concrete driveway," wrote investigator Jerry McKibben.

The autopsy also stated that there were no drugs found in his system at the time of death.