The suspect in a shooting at a Washington state mall that left five dead is in custody, authorities said Saturday.

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Arcan Cetin, 20, of Oak Harbor, was found and taken into custody about 6:30 p.m. PDT Saturday in connection with a deadly shooting at the Cascade Mall in Burlington on Friday night, police said. Authorities say the motive for the shooting, which left four females and one male dead, is unknown.

>> Who is Arcan Cetin, suspect in deadly Washington state mall shooting?

Washington State Patrol public information officer Sgt. Mark Francis tweeted an image of Cetin.

>> Washington state mall shooting: A timeline of events

Law enforcement staged a massive search over more than 20 hours for the suspect, initially described by witnesses as a young Hispanic male wearing black. Cetin wrote on his Facebook page that he is from Turkey.

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Authorities had said that a rifle had been found at the scene.

The FBI was assisting local authorities, but it said there was no evidence to point to terrorism

The Associated Press contributed to this report.