Baton Rouge Police arrested a 21-year-old suspect Tuesday in an armed robbery that turned into a fatal shooting last month.

Tyronn Collins is accused in the killing of 34-year-old Roderick Carolina, who was found dead in his Alaska Street apartment Dec. 12.

U.S. Marshals found Collins at a home on Lynn Drive early Tuesday, said Cpl. Don Coppola, a Baton Rouge Police spokesman.

Collins, of 2556 Thomas H. Delpit Drive, was booked into Parish Prison on a count of first-degree murder.