Amanda Velez heard a loud bang, then screams of her youngest daughter, inside their North Philadelphia home. "In a matter of seconds, I’m using the restroom, I hear a loud bang, and I heard glass shatter, and I heard my youngest daughter, who’s two years old she was screaming," Velez told NBC10 in an interview Thursday. Coast Guard Lt. Accused of Planning Large-Scale Killings Then, she said, "I heard my son say, 'Mommy.'" Velez picked up her son, Adrian Ortega, and a shard of glass fell to the floor, she said. Watch: DC Pandas Bei Bei and Mei Xiang Go Crazy in the Snow "I lift him up and I saw blood," she said. Adrian, 4, suffered a fatal wound from the piece of broken glass, which came from a large picture frame that had shattered. Lion Killed Intern at Zoo When Gate Was Blocked: Witness Velez rushed the boy Wednesday afternoon from the house in the 3200 block of North Reese Street to the nearest hospital. "They tried to do everything," she said. "They said they were trying to stabilize him, so he could go to the surgery room. But he wasn't strong enough." Adrian was pronounced dead at St. Christopher’s Hospital shortly before 5 p.m. Photo Credit: Provided This story uses functionality that may not work in our app. Click here to open the story in your web browser.