Lexington police have made a third arrest after the September murder of a college student.
Police say three men robbed Derek Pelphrey. He was a college student at Bluegrass Community and Technical College. Pelfrey ended up shot and killed.
Police had already arrested Trustin Jones and Robert Guernsey. Now, they have also arrested 23-year-old Desmond Jones. He's accused of murder and conspiracy to commit robbery.