Alek Minassian is shown in a handout photo from his LinkedIn page. A psychiatrist retained by the defence will testify for a fifth consecutive day today at the trial for the man behind Toronto's van attack. Dr. Alexander Westphal says Alek Minassian does not truly understand the moral wrongfulness of killing 10 people, but says criminal responsibility is a legal opinion, not a psychiatric one. THE CANADIAN PRESS/HO