A driver suspected of killing 10 and injuring 15 others when he plowed a rental van into pedestrians in Toronto will make his first court appearance on Tuesday when details of a motive for the attack were expected to emerge. The suspect is Alex Minassian, who is 25 years old. He will appear in a Toronto court at 10 a.m. Tuesday morning. Minassian, who was not previously known to authorities, attended a high school program where one classmate remembered him as “absolutely harmless.