Former WWE Superstar Eddie Fatu aka Umaga -- who died in December -- was the victim of a bad combination of drugs, according to the Harris County Medical Examiner in Texas. Dan Morgan, the supervisory forensic investigator for Harris County, blamed "acute toxicity" -- claiming the combined effects of hydrocodone (aka Vicodin), carisoprodol (muscle relaxer), and diazepam (aka Valium) were responsible for the wrestler's death. TMZ