ORANGEBURG -- A third suspect has been arrested in connection with the slaying of a South Carolina State University student who was killed in April during an on-campus drug deal.

The State Law Enforcement Division said Wednesday that agents arrested Hillard Pinkney, 22, of Hawthorne Drive, North Charleston.

He is charged with accessory after the fact of murder.

SLED had announced Tuesday that Ray Alston Jr. of Meadow Avenue, North Charleston, and a 16-year-old boy from Holly Hill are each charged with murder in the April death of 22-year-old Jonathan Bailey.

According to the arrest warrant, Pinkney was one of five men who met Bailey at the Orangeburg university for a drug deal, and Bailey was shot in the chest as he tried to run away after an argument over how much marijuana was being sold.

Additional arrests were expected, law enforcement officials said.