There's no dispute on whether Jesus Mesa Jr. killed 15-year-old Sergio Adrián Hernández Güereca.
He did. And there's a video of it.
In 2010 Mesa, an on-duty U.S. Border Patrol agent who was at the border in El Paso, Texas, shot Hernández at least twice — once in the face. At the time, the boy, a Mexican national, was on the southern side of the border in Ciudad Juarez.