Johnny Lewis Autopsy Results: Katy Perry's Ex 'Sons of Anarchy' Beau Not on Drugs when he Killed Landlady, Tragically Plummeted to Own Death

The autopsy results for Katy Perry's troubled ex-beau Johnny Lewis are in, and the toxicology report confirms that the former "Sons of Anarchy" star  was not on any sort of drug when he brutally killed his 81-year-old landlady, dismembered her cat, and ultimately plummeted to his own death in Los Feliz, CA this past September. While rumors had it that the late 28-year-old actor may have been on some sort of hallucinogenic narcotic at the time of the disturbing incident (perhaps the new synthetic drug known as "Smiles), the test results indicate that Lewis was indeed sober at the time of the shocking murder and "accidental death." The autopsy reports leaves family, friends, and fans even more confused as to why Lewis would have committed such a horrifying deed.

Police reports allege that Lewis (who dated pop star Katy Perry from 2005-2006), bludgeoned his elderly landlady Catherine Davis to death before falling to his own demise from the balcony of his home on Wednesday, Sept. 26, 2012. When police arrived at the scene, they found Lewis' lifeless body lying in the driveway and a ransacked room filled with debris and the body of a beaten cat. While details surrounding the bizarre incident remained unclear, Lewis' death was ultimately ruled an accident, not a suicide. Investigators believe that in an attempt to leave the crime scene, Lewis "apparently lost his balance or struck an object" which caused him to tumble to his death.

 While many believed that Lewis (who once played a one-testicled biker-gang wannabe Half Sack on the hit biker show "Sons of Anarchy") must not have been in a coherent state of mind at the time, the toxicology test results conclude that no cocaine, alcohol, or marijuana was found in his system. Lewis' violent, murderous actions and consequential death remain a mystery.