Kafoa M. Hefa, 20, of Seattle, Wash., was taken into custody without incident on Tuesday at the home of relatives in the 700 block of Donohoe Street, according to Deputy U.S. Marshal Gary Enos. Hefa had been sought by authorities for a probation violation and is believed by Seattle police to be responsible for the shooting murder of an (omitted) rival gang member, Randy West, on March 21 in Seattle, the U.S. Marshals Service reported.