A judge has ruled that Pierre Ny St-Amand, 53, was not criminally responsible for the 2023 bus attack on a Laval, Que., daycare that killed two small children and injured six others. Superior Court Justice Éric Downs concluded Ny St-Amand was experiencing psychosis and could not discern right from wrong. He has been ordered detained in a psychiatric hospital. Here's a look at some other high-profile Canadian cases in which there was a not criminally responsible finding: Blair Donnelly stabbed his 16-year-old daughter to death in Kitimat, B.C., in 2006 and was found not criminally responsible on account of a…