Ric Flair's son, Reid Fliehr, died from a toxic mix of heroin and prescription drugs, according to the official autopsy.WCNC-NBC Charlotte, in Charlotte, NC, reports that the Mecklenburg County Medical Examiner's office also found traces of clonazepam, a muscle relaxant and alprazolam, an anti-anxiety drug commonly marketed as Xanax.His father Ric Flair was the one who found him unconscious on March 29 in a second bedroom of a two-bedroom SouthPark hotel suite, where Reid was living at the time.Reid, who went by the ring name Reid Flair, had just returned from a successful wrestling tour in Japan. He'd looked forward to tag-teaming with his father in two bouts in Maryland and working out of Charlotte before going back to Japan for a second tour in late April.Medics declared Reid dead on the scene. Police wrote that Reid was incapacitated because of drugs.On Friday, Reid's mother, Beth Fliehr, said she'd suspected a drug overdose killed her son and that the autopsy report didn't surprise her.Ric Flair also released a statement about his son on Friday saying, "I loved him." "He should have been on top of the world, but he was fighting a battle he couldn't win. I hope people remember his laugh, his spirit, and his love of life."