Jasveen Sangha, who is dubbed the 'Ketamine Queen,' agreed to plead guilty to charges in connection with Matthew Perry's overdose death. Here's everything to know about the Jasveen Sangha.

A woman known as the “Ketamine Queen,” charged with selling Matthew Perry the drug that killed him, agreed to plead guilty Monday.

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.