How Texas investigators unraveled the murder of Texas teen Livye Lewis

Livye Lewis, 19, was found shot dead in her car, with her ex-boyfriend bloodied on the ground nearby. He says he has no memory of what happened. "48 Hours" correspondent Peter Van Sant reports on how investigators pieced together the events of that night

source https://www.cbsnews.com/video/how-texas-investigators-unraveled-the-murder-of-texas-teen-livye-lewis/