A 50-year-old Saudi man has been arrested following a violent attack that resulted in five deaths and over 200 injuries at a Christmas market in Magdeburg, Germany. Investigators suggest the suspect, who modified his vehicle to accelerate into crowds, acted alone and had previously made online threats against German citizens. There are growing concerns over whether German authorities could have prevented the attack despite previous warnings about the suspect’s behavior and statements. The case has raised significant questions regarding national security and the handling of online threats.