Police say RJ Blueford pistol-whipped a man during a robbery on July 9 on West 16th Street and Highway 59.
They say Blueford had visited the victim earlier in the day, then later robbed him and hit him in the head twice with a gun.
He stole the victim's backpack containing about $240.
Blueford was arrested last night after hiding in the attic of an abandoned apartment on W Street.