Would-be terrorist Chiheb Esseghaier is clearly insane, but should that even matter in court?

The small interesting fact that emerged from the ongoing trial of Chiheb Esseghaier, convicted of terrorism in the Via train plot, subject of a psychiatric assessment and awaiting sentencing:

There are also plenty of mentally ill terrorists, says Paul Gill, a senior lecturer in security and crime science at the University College London. In a recent study, he found 40 per cent of lone-actor terrorists suffered from some kind of mental illness and 40 per cent of those were diagnosed schizophrenics.

“And just because they had histories of mental illness doesn’t make them irrational, spontaneous actors,” Gill said. “Many of them, they were just as likely to engage in really rational, thought-out planning as the guys without mental health problems were.”

Source: Would-be terrorist Chiheb Esseghaier is clearly insane, but should that even matter in court?