>> there was a box of dummy rounds, and the box is labeled dummy. she loaded rounds from that box into the handgun only later to find out there is a -- she had no idea, she expected the rounds, but there was a live round. now we're assuming somebody put the live round in that box, which if you think about that, the person who put the live round in the box of dummy rounds had to have the purpose of sabotaging the set. >> they don't know that any of that happened, by the way. they don't have any evidence of that. okay. so what does it mean? we're going to talk about it with a crew member because crew members are coming forward. you're about to meet one of them who wanted off of that set because of unsafe working conditions, okay? our guest was "rust's" camera chief. he left the day before this happened. his name is lane looper. thank you very much. let me bounce a couple of tech questions off of you, and then