 These are shoes that you do not want to fill. That's Tanya Worden. She lost her son, Tyron Alexander, in October of 2020, one of 499 people killed in Philadelphia that year, most of them with a firearm. And he was one of more than 45,000 people who died via guns that year in the U.S. He was 29, a father of two, and he had just stopped by his old neighborhood to see friends when he was robbed and shot.