For me it is the “fall of the Berlin wall” and the celebrations after the border openings.
I’d actually prefer to witness a fair trial. Just because I’d actually like to know how he’d try to defend and explain what he did. It might have given us the chance to study him and what led to him becoming that way.
I’m pro studying people like psychopaths and sociopaths to better understand what it takes to be or become one to prevent horrible outcomes.
We should spend way more time on studying and understanding murderers and the source of their actions.