prosecution scoffed at bianca's lost gun story, her loft friends did not. >> if you knew sweet bianca, she accidentally threw her gorgeous wedding ring away. we had to dig it out of the garbage. i was standing there. she can be an absent-minded dingbat. >> reporter: but remember the day police searched the loft? >> they took apart my toaster. >> reporter: she was focused like a laser that day, said bianca, watching intently, she said, as an officer looked in the empty 9 millimeter gun case. >> i was sitting beside her. >> reporter: no test fired shell casing, she said. >> i don't mean to sound cynical, but i know it wasn't there. >> reporter: only possible conclusion, said bianca, it was her accusation, the sandy police must have planted the shell casing in order to link chris' missing gun to the crime scene. you think it would be hard for people to accept the idea that this detective would do something as unethical as plant