By Andres Gutierrez / NBCDFW
Until today, Roberto Ramirez and Alfredo Rojo were once complete strangers to LouAnn Arnold and her family.
Their bond? Parker county sheriff Sergeant Rusty Arnold, the man who saved Roberto and Alfredo’s lives her son.
It was days before Christmas 2010 when Rusty’s life ended in a Springtown intersection. READ MORE>>