his face on them. >> yeah. >> what was it like to kill the actual guy? >> it wasn't real. it was another guy in a house we shot. it didn't sink in. it didn't sink in for a while. >> has it sunk in now? >> yeah, it has now. i've thought about it every day for a number of years. i'm still trying to figure out if it's the worst or best thing i've ever done. >> how is it the best? >> we accomplished the mission and i was a big part of it. i was a part of it. >> how could it be the worst? >> i don't know what's going to happen. and that's something i have to live with every day. >> before the war on terror and the hunt for osama bin laden, took rob to the furthest reaches of the globe, the quiet mining town of butte, montana, was home. this is where his story begins. rob o'neill had a normal chide