These people gave their lives to save others. In 2017, Brennan Stewart died while shielding his girlfriend Gia from bullets during the October 1 shooting in Las Vegas. In 2018, Martin Martinez died after pushing three girls out of the way of a car and saving their lives. In 2019, a New Jersey high school mourned the loss of its principal, Dr. Nelson, who died trying to save a stranger’s life. Inside Edition Digital’s Andrea Swindall has more.