Police Apprehend Lone Gunman Suspected of Killing 5 at Cascade Mall

The suspect in the fatal shooting of five people at the Cascade Mall in Burlington, Washington, has been taken into custody, authorities announced late Saturday.

Four women and one man were killed after a lone gunman opened fire inside the makeup department at a Macy's store inside the mall. Authorities launched a massive manhunt for the suspect, who could be seen carrying a gun through the store in surveillance footage.

Authorities announced in a press conference that they had apprehended Acran Cetin as he was walking near his home in Oak Harbor, Washington, on Saturday night. According to Lt. Mike Hawley of the Island County Sheriff's Office, Cetin did not attempt to flee when he was confronted by authorities and was not armed at the time of his arrest.

"He said nothing," Hawley said. "Just kind of zombie-like."

Hawley said he recognized Cetin, 20, from the wanted posters and "did a quick turn" to confront the suspect.

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Authorities said Cetin immigrated from Turkey and was a legal permanent resident of the United States. According to authorities, he was arrested in Island County last year on a case of simple assault. It is not known what was the result of that arrest.

As of Saturday night, authorities said they still did not know the motive behind the shooting but that they weren't ruling out the possibility of terrorism. However, they had previously stated that they had no indication that it was connected to terrorism.

Authorities said on Saturday that Cetin's family have been in touch with police and have been cooperating with the investigation.

In the press conference, authorities said that Cetin hadn't been formally charged yet and was being held at a jail while they reviewed the case. He is expected to appear in court on Monday.