The teenage Afghan teenager who carried out the axe-and-knife attack on a train in southern Germany left behind a letter and a video saying he sought to avenge the deaths of civilians in Muslim countries.
The self-styled Islamic State, which said the 17-year-old attacker was one of its fighters, posted a video of him wielding a knife and saying he’ll use it to slaughter ‘infidels.’
German authorities said the video and letter were in all likelihood authentic.
Monday’s grim attack, and the profile of the young man believed to have self-radicalised recently, puts Chancellor Angela Merkel’s open-door policy back in the spotlight.
The assailant sought asylum in Germany after he entered the country last summer with a wave of migrants, said prosecutor Erik Ohlenschlager.
“Until two weeks ago, he was living in a camp in Ochsenfurt, and was then transferred to a foster family,” he told reporters.
Four Hong Kong citizens were seriously wounded in Monday’s attack. Two of them were in a critical condition. The assailant also injured a local woman as he fled the scene, before police shot him dead.
Investigators found a handmade ISIL flag in his room. The boy had recently learned a friend of his had died in Afghanistan, the prosecutor said.