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(Reuters) - Investigators were working to determine what led a gunman to open fire and kill five people in a department store at a Washington state mall, police said on Sunday after arresting a 20-year-old suspect in the deadly rampage. Police took Turkish-born Arcan Cetin into custody on Saturday evening in Oak Harbor, about 30 miles (48 km) southwest of Burlington where the shooting occurred on Friday night. Cetin, who police said is a legal, permanent resident of the United States, is accused of opening fire in the cosmetics section of a Macy's department store at Cascade Mall, killing four women and a man.
OAK HARBOR, Wash. (AP) — Investigators on Sunday tried to piece together information on the 20-year-old suspect in the deadly Washington state mall shootings who was apprehended after a nearly 24-hour manhunt.