Australian Prime Minister Malcolm Turnbull (L) and Lord Mayor Robert Doyle walk past the site where people flocked to mourn and lay floral tributes for victims of the Bourke Street attack in Melbourne, Australia, Jan. 22, 2017.(Xinhua/Bai Xue)
Australian Prime Minister Malcolm Turnbull (L) and Lord Mayor Robert Doyle walk past the site where people flocked to mourn and lay floral tributes for victims of the Bourke Street attack in Melbourne, Australia, Jan. 22, 2017.(Xinhua/Bai Xue)