Orie D. Anderson, 24, shot Tony Thomas, 22, during a fight on Nov. 5 on a sidewalk in the 9600 block of Anderson Avenue.
Milwaukee police and the FBI picked him up without incident at about 4 p.m., based on tips received in Cleveland. Anderson was featured in "FBI Most Wanted" publicity, and his photo was shown on a digital billboard here.
Thomas was shot multiple times, including once in the head, about 4 p.m. and died less than nine hours later at MetroHealth Medical Center.