BURLINGTON, Wash. (AP) — Authorities say the suspect in the deadly Washington state mall shooting said nothing when he was apprehended and was “zombie-like.”

Island County Sheriff’s Lt. Mike Hawley said he spotted 20-year-old Arcan Cetin Saturday evening in Oak Harbor, Washington, from a patrol car and immediately recognized him as the suspect.

Hawley said at a news conference that his office had received information that Cetin, who is from Oak Harbor, was in the area. Hawley said Cetin was unarmed: “He said nothing. He was kind of zombie-like.”

A gunman opened fire at the Cascade Mall in Burlington, Washington, Friday night, killing four females and a male before fleeing. Law enforcement staged a massive search over more than 20 hours for the suspect.

Authorities say Cetin had a previous arrest for simple assault and had immigrated from Turkey. At a news conference Saturday night, Lt. Chris Cammock of the Mount Vernon Police Department said the suspect was a “legal, permanent resident of the United States.”

The Seattle Times cites Skagit County court records showing three domestic-violence assault charges for 20-year-old Arcan Cetin in both Burlington, Washington, and Island County, with the victim identified as Cetin’s stepfather. The newspaper reports Cetin also was arrested for drunken driving.

Court records show Cetin was told by a judge on Dec. 29 that he was not to possess a firearm, the newspaper reported.

However, the stepfather urged the judge not to impose a no-contact order, saying his stepson was “going through a hard time.”