That's kind of how I felt about it.I kept on switching from "god he evil" to "wrong man"
I get that the witnesses were adamant it was him but, let's be honest, it was a show trial, and they were hardly likely to put people on the stand who were going to say they weren't sure it was him. (I couldn't honestly say I would recognise someone I went to school who I'd never seen for 35 years - different circumstance, admittedly.) Can't understand why the defence didn't try that, though - maybe they couldn't find anyone willing to do it. Maybe they were worried they'd get the same kind of vilification the defence lawyer got.
Other things didn't quite gel as well - the prosecution lawyer stating that the SS blood group tattoo was only given to camp guards, or the branch of the SS that oversaw the camps, is just wrong - it was mainly given to waffen-SS members, the fighting arm, to assist medics dealing with battlefield injuries. Even then, a lot of SS soldiers didn't have it (the likes of Mengele apparently didn't have one), and as the war went on, it became almost voluntary.
Like I've said - I have no doubt he was in the Ukrainian SS, and their reputation for cruelty was beyond that of even the German SS. I just don't think it was proved beyond a shadow of doubt that he was actually 'Ivan the Terrible'.