Matthew Perry death investigation: 'Ketamine Queen' and cover-ups

Investigators lay out key findings in Matthew Perry’s deathWhen Friends actor Matthew Perry was found dead in a hot tub at his Los Angeles home last year, it seemed like it could have just been an accident. He'd been treating his depression with ketamine infusion therapy, wasn't found with drug paraphernalia or anything suggesting foul play, and appeared to have drowned. He'd spent decades fighting addiction, but…