in part because of the roads involved. also with the impact of the subway system. as shepard was just pointing out, white vans typically are rental vans. the white van running along the sidewalk taking down a number of pedestrians. so this, if one of the goals was to create the maximum number of casualties we don t know what the subject s objectives were in this case. but if that were one of the goals, this would be the area to achieve that, sandra. sandra: young street, police have closed the south bound lanes of young street. officers investigate the scene there. they re also urging people to avoid the area at this time. you ve got to imagine, as you know, toronto has a very busy business district. police are saying it occurred just around the 1:30 p.m. hour, lunch hour. obviously a very busy hour.