A man suspected of carrying out the recent shooting at a Washington mall that left five people dead has been arrested.
Lieutenant Mike Hawley, of the state's Island County sheriff's office, said that the suspect was "zombie-like" when he was captured. Hawley saw 20-year-old Arcan Cetin in Oak Harbour from a patrol car and immediately recognised him as the suspect.
Hawley told a news conference that Cetin was unarmed, adding: "He said nothing. He was kind of zombie-like."
A gunman opened fire at the Cascade Mall on Friday night, killing four women and a man before fleeing. Police staged a massive search over more than 20 hours for the suspect.
The motive for the shooting is unknown. The FBI was assisting local authorities, but said there was no evidence pointing to terrorism.
Dozens of people attended a prayer service for the victims on Saturday night at Central United Methodist Church in Sedro-Woolley, Washington.
One of the victims was 16-year-old Sarai Lara, who was shopping with her mother and younger sister, but they split up, according to The Seattle Times. News of the shooting spread through the mall, and her mother was unable to find her. It was confirmed at 2am on Saturday that Sarai was among the five killed.
Lt Chris Cammock, of Mount Vernon Police Department, said Cetin, who is expected to appear in court on Monday, was from Turkey but a "legal, permanent resident of the United States".
Authorities say he had a previous arrest for simple assault. According to reports, the suspect has a criminal record that includes domestic-violence assault charges.
The Seattle Times said Skagit County court records show Cetin was told by a judge on December 29 last year that he was not to possess a firearm.
However, Cetin's stepfather urged the judge not to impose a no-contact order, saying his stepson was "going through a hard time".