i just didn't do it

it's the title of a japanese film i saw.
the movie is about a young man
falsely accused of molesting a high-school girl
on a train. he was arrested and charged,
and goes through almost-endless court sessions,
all the while insisting that he is innocent.

i don't want to do the same.
i was accused. i was judged.
what more can i do? appeal?
but you stated that an appeal does not guarantee anything.
so why would i?
should i just thank you for not killing me?
okay, thank you.

but you should know, i - just - didn't - do - it!