The doctors accused of fueling Matthew Perry's fatal addiction are not one-offs ... they are part of an elaborate, secret celebrity drug ring that is...

The doctors accused of fueling Matthew Perry's fatal addiction are not one-offs ... they are part of an elaborate, secret celebrity drug ring that is...

Perry had been seeking treatment for depression and anxiety when he became addicted to intravenous ketamine.

Perry had been seeking treatment for depression and anxiety when he became addicted to intravenous ketamine.

Jasveen Sangha, who federal prosecutors allege is a drug dealer known as the "Ketamine Queen," has NO association with Matthew Perry, despite being...

Jasveen Sangha, who federal prosecutors allege is a drug dealer known as the "Ketamine Queen," has NO association with Matthew Perry, despite being...

Brooke Mueller hit the tennis court with serious energy this week ... after a tough time recently, with her name tangled up in Matthew Perry's...

Brooke Mueller hit the tennis court with serious energy this week ... after a tough time recently, with her name tangled up in Matthew Perry's...

His death shocked many fans and sparked renewed focus to the ways in which substances like ketamine are being used recreationally.

Sean “Diddy” Combs was taken into custody by federal authorities in New York Monday night, multiple law enforcement sources tell CBS News, in...