They called her “the Ketamine Queen.” Jasveen Sangha, authorities say, would sell ketamine — a.k.a. Martín Estrada said an investigation had uncovered “a broad underground criminal network” responsible for distributing large quantities of ketamine to Perry and others. Estrada referenced the opioid fentanyl, which has fueled an epidemic of overdoses, and said authorities are “on a campaign to address this …