Police officers stand guard as emergency services work at Brokstedt station in Brockstedt, Germany, Wednesday, Jan. 25, 2023. A man stabbed and wounded several people on a train in northern Germany on Wednesday before police detained him, and two of the victims died, German news agency dpa reported. (Jonas Walzberg/dpa via AP)

Emergency services work at Brokstedt station in Brockstedt, Germany, Wednesday, Jan. 25, 2023. A man stabbed and wounded several people on a train in northern Germany on Wednesday before police detained him, and two of the victims died, German news agency dpa reported. (Jonas Walzberg/dpa via AP)

Forensics staff at the scene of a train platform in Brokstedt, Germany, Wednesday, Jan. 25, 2023. German police say a man has fatally stabbed two people and injured seven others on a train in northern Germany before being arrested. Germany’s Federal Police force said the man used a knife to attack several passengers Wednesday shortly before a regional train traveling from Kiel to Hamburg arrived at the Brokstedt station. (Jonas Walzberg/dpa via AP)