Dr. Salvador Plasencia, who is charged with giving Matthew Perry ketamine in the months leading up to the Friends star's overdose death, has agreed to plead guilty to four counts of distribution of ketamine,

Physician Salvador Plasencia, who was charged in the death of Matthew Perry, pleaded guilty to distributing ketamine to the "Friends" actor.

Dr. Salvador Plasencia, who was doing drug deals on the Third Avenue Promenade and texted another dirty physician "I wonder how much this moron will pay," referencing the "Friends" star, entered into