bianca says she is certain chris did not use it to kill ken dolezar that morning.t gun, i lost, back in the summer. >> i lost? >> yeah. >> you just lost the gun? >> i have a horrible habit of losing stuff. >> before chris ever met ken dolezar, she took some visiting british friends on a shooting excursion to the great salt lake. they finished at sunset. >> and i put down this little gun, the springfield, on the ground, right next to the bag. and i went to, like, help somebody with something else. >> then she got distracted, she said, packed up the rest of the gear, went home, and neither she nor chris ever saw that gun again. bianca's proof the gun was missing? this video made just over a day later by her british visitors who wanted to document their uniquely american experience. in their video, there was no sign of a springfield armory .9 millimeter. >> i lost stuff and it was a bone of contention between chris and i. >> while the prosecution scoffed at bianca's lost gun story, her loft friends did not. >> it you know sweet bianca, she accidentally threw her weddi