When a war erupts in New York City between gang members, it leaves a string of bodies behind.
On Elementary Season 5 Episode 25, Sherlock had his work cut out for him to get to the root cause for the fighting.
When the investigation led nowhere, Sherlock wondered whether someone he had put away before could have been the perpetrator.
Did he find out the truth before it was too late for everyone?
Use the video above to watch Elementary online to get up to speed with the latest drama for the characters.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.