Dr. Salvador Plasencia, a physician charged along with four others in the death of actor Matthew Perry, has pleaded guilty to his role in the substance abuse that contributed to the "Friends" star's t...

A doctor charged with giving Matthew Perry ketamine in the month leading up to the “Friends” star’s overdose death has agreed to plead guilty, authorities said Monday.

The plea deal outlines how Plasencia administered the powerful anesthetic to Perry on several occasions.