world, i m wolf blitzer and this is the situation room special report. as we cover the breaking news from illinois, cnn s coverage of the fourth in america is delayed until later this hour. let s go straight to highland park, illinois, the chicago suburb that s grief-stricken and terrorized right now as the mass shooting suspect is still on the loose. cnn is there for us, adrian, police are looking for a 22-year-old man named robert e. crimo the third. tell us about what they know. reporter: wolf, investigators believe that 22-year-old who they think is responsible for the shooting that happened here in highland park is driving. he s in a vehicle, they say, with illinois plates, described as a silver hyundai. and the license plate, again dm 8 80653. meanwhile, investigators had their teams out aggressively trying to apprehend this suspect. they consider him armed and dangerous. if you think you see this 22-year-old man, police say do not approach him. instead, call 911. t