CNN’s John Miller shares what we know – and what we don’t know – about the suspected gunman police think is responsible for the deaths of at least three people on the University of Nevada, Las Vegas, campus before being killed by police.CNN’s John Miller shares what we know – and what we don’t know – about the suspected gunman police think is responsible for the deaths of at least three people on the University of Nevada, Las Vegas, campus before being killed by police.
