Four males were shot in West Baltimore late Saturday night, police said, part of a violent start to the Labor Day weekend. Police responded to the 900 block of North Monroe St. around 11:35 p.m. and found four males suffering from gunshot wounds — three were shot in the legs and one in the chest. The victims — ages 23, 19, 17 and 15 — were transported to area hospitals by medics. Earlier on Saturday, about half a mile away, police say a 46-year-old man shot in the back.