ADA, Oklahoma - Prosecutors in Pontotoc County have charged a 20-year-old pharmacy technician with first-degree murder after he allegedly sold anti-anxiety and pain medications to a man who didn't have a prescription and later died of an overdose.

Zebakiah Nemecek is charged in the December death of 20-year-old Kase Harris of Ada. The Ada News reports that an autopsy shows Harris died of a hydrocodone overdose.

A police affidavit claims that Harris paid $100 to Nemecek in exchange for Xanax and Lortab -- which includes hydrocodone.

Police say Harris later went to a party and that he was found unresponsive the next morning by another partygoer. He was pronounced dead at a hospital.

Court records list Nemecek's attorney as Irven Box, who could not be reached for comment Wednesday morning.