Jasveen Sangha, 42, agreed to plead guilty to one count of maintaining a drug-involved premises, three counts of distribution of ketamine, and one count of distribution of ketamine resulting in death or serious bodily injury.

Who is the ketamine queen that sold fatal drug, causing Matthew Perry death? Here's what to know about ketamine and why people take it.

Federal prosecutors say “Ketamine Queen” Jasveen Sangha ran a Hollywood drug ring from her North Hollywood home, supplying ketamine and meth. She has accepted a plea deal in the fatal overdose that killed "Friends" star Matthew Perry.

STANDING outside the Hollywood home of Matthew Perry, as the coroner’s van carrying his body sped past, I couldn’t help but shed a tear. I had followed the star’s tragic decline for years,