“Officials: Germany stabbing suspect mentally unstable,” by Matthias Schrader and Geir Moulson, Associated Press, May 10, 2016: GRAFING, Germany (AP) — A German man yelled “infidel, you must die” and “Allahu akbar” as he stabbed one person to death and wounded three others at a Bavarian train station Tuesday, but authorities said they’ve found no links to any Islamic extremist network.

The 27-year-old, who had previously been in psychiatric care, made a “rather confused impression” as he was questioned by investigators, authorities said. He had a 10-centimeter (4-inch) survival knife tucked into his belt when he was caught at about 5 a.m. near the scene of the attack by the Grafing Bahnhof station, near Munich, they said. One man died in a hospital after the apparently random attack and three other men were being treated for their wounds.

The suspect’s name wasn’t released in line with German privacy laws, but authorities said he is a German citizen with a traditional German name. The man, a former carpenter who had been unemployed for two years, admitted to the crime, said Ken Heidenreich, spokesman for the Munich prosecutor’s office in charge of the case.

But Heidenreich said that there were questions about whether the man can be held criminally responsible and that authorities were evaluating whether he should be taken to a mental hospital. Senior police official Lothar Koehler said the suspect told them he had been taking drugs, and that around the time of the attack he took his shoes off because “he felt bugs on his feet that had caused blisters and were generating intense heat.”

Koehler added it wasn’t immediately clear whether the suspect was under the influence of drugs at the time of the attack, and authorities have found no record of any previous narcotics cases against him. A woman reported hearing the words “infidel, you must die” as the attack began, and the suspect himself admitted yelling “Allahu akbar,” Arabic for “God is great,” senior police official Guenther Gietl said.