 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.