NEW : Grandfather credits Cassidy Stay with saving 20 lives by alerting authorities . The man who was shot and killed in a shooting at the Waffle House on Saturday morning is believed to have been an employee of the restaurant where he worked for about two years. The remarks -- at a public memorial for her family -- were the teenager 's first public comments since she emerged as the lone survivor from the carnage in her family 's Spring home . He says she played dead after being shot , then told police others were in danger . The teenager speaks out for the first time , after her parents and 4 siblings were killed . Cassidy quotes from Harry Potter : `` Happiness can be found even in the darkest of times ''
NEW : Grandfather credits Cassidy Stay with saving 20 lives by alerting authorities . The man who was shot and killed in a shooting at the Waffle House on Saturday morning is believed to have been an employee of the restaurant where he worked for about two years. He says she played dead after being shot , then told police others were in danger . The teenager speaks out for the first time , after her parents and 4 siblings were killed . Cassidy quotes from Harry Potter : `` Happiness can be found even in the darkest of times ''