credibility tests. 1:00 a.m. in a little room downtown, already a long day for mangen andtrudy at the table facing bob. i m trying to figure out what happened. we have good reason to believe onna was murdered. oh, my god. no. how how would something like that happen? how did that happen? do you know of anybody who would want to harm onna? no. i mean, why would somebody want to harm onna? they needed to nail down the timeline for the evening she was murdered. tuesday, january 14th. i wasn t doing anything.