Pills Found in
According to the police report filed by the Pasco County Sheriff's Office -- and obtained by TMZ -- investigators claim they found a box containing Oxycodone in Luna's kitchen ... near a pile of "blue, chalky debris next to a small straw."
Officials also claim they discovered "multiple prescription bottles and miscellaneous unsecured pills" in the master bedroom ... along with a small plate that contained more pill residue and another snorting straw.
According to the report, Luna's mother -- the person who discovered the body -- told cops that Luna "often appeared 'medicated' as she suffered from several wrestling injuries."
Officials tell TMZ an autopsy has been completed -- and an official cause of death should be determined within the next couple of weeks.