Jasveen Sangha, notoriously known as LA's "ketamine queen," has pleaded guilty to five federal criminal charges relating to Matthew Perry's demise.

One year ago, federal authorities announced that five people had been charged in connection with the ketamine overdose death of Matthew Perry .

Prosecutors say she has 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 de...