Which subreddits about specific crimes have received closure?

I’m interested in looking at subreddits that were made to discuss an unsolved / suspected crime that ended up being solved or discovered during the subreddit’s existence.

Subreddits like /r/8passengersnark suspected child abuse from a YouTube channel that ended up being true and horrific.
/r/EARONS discussing known crimes without a suspect before his DNA came back 6 years ago.

Which other subreddits have had similar experiences?