former marine admitted to his sister that he had just murdered a heroic navy seal sniper. in that call the sister said she, too, was terrified for her own life. police say the suspect on saturday killed the former navy seal chris kyle and a friend on a texas shooting range. kyle was a highly decorated sniper who reportedly had 160 confirmed kills. making him the most lethal in the united states military history. he was also the author of a best selling book american sniper, which detailed his four tours in iraq. four tours. documents show that back in september police took the suspect to a mental hospital after he reportedly threatened to kill his family. a family he now refuses to see along with his own attorney as he sits behind bars charged with capital murder. jonathan hunt is with us tonight. what's on this 911 recording? >> well, first of all, after allegedly murdering chris kyle and his friend chad littlefield, the alleged