pedro adami was one of the lucky ones.e was searching for his niece in the crowd of children when suddenly -- they spot one another. >> it's okay, we're right here, we're right here. it's okay, it's okay, we're right here, okay? hey, hey, we're right here, okay? >> reporter: 17 people were injured in the massacre. three children and one adult taken to university hospital. ut health, san antonio. where trauma surgeon dr. lillian liao treated them. >> when a high-velocity firearm enters a body, it basically creates a wave and a blast. so it looks like a body part got blown up, simply put. and so there's a lot of tissue that's going to go missing, that we cannot put back. >> reporter: sadly, it was not her first time treating victims of a mass shooting. she was on the front lines when a gunman opened fire inside a church in sunderland springs, texas, killing 26. >> the time where we responded to sutherland springs, i wasn't a mom. and this time, i am. i was grateful to be able to go home and hug my children. and also felt a l