An Amersfoort man who stabbed another man to death on the Erasmus bridge in Rotterdam last September and seriously injured a second, should be jailed for 20 years, followed by psychiatric prison, the public prosecution department said at his trial on Monday.

Ayoub M, who is 23, has been charged with murder and attempted murder with terrorist intent. He told judges at the high security court near Schiphol airport on Monday that he remembers nothing of the incident and that he is not a terrorist.

M was under the supervision of parole officers when he carried out the attack, after serving time in a psychiatric prison two years earlier for attacking his mother with a knife.

On Monday relatives of the two victims, one German, one Swiss, told the court about the impact of the crime on them. Swiss victim Stefan, who survived, says he still has panic attacks and has become afraid of public spaces.

The mother of the German victim Philipp said that M should never be released. “He should never be allowed back into society,” she said. “Philipp cannot do that either.”

M is alleged to have shouted “Allahu akbar” while carrying out the attack and before he was tackled by bystanders.