Mark Chavez is the third of five defendants in the ketamine distribution case to sign a plea deal with prosecutors

Matthew Perry death: timeline of the Investigation into the Friends actor’s passing - Perry died from the ‘acute effects of ketamine’ aged 54 in October 23 — but how did we get to that point?

One of two California doctors who were among the five people charged in the overdose death of "Friends" star Matthew Perry is expected to plead guilty on Wednesday to a charge of illegally distributing the drug ketamine.