Don't let me go

John has fallen into a depression since Sherlock died, a very deep one at that. The only time he leaves the flat is on his or his dead boyfriend's birthday to visit the grave. on his third year he was going to kill himself and nothing would save him.

Or would it?

Plus a new threat in on the rise, and he is angry at sherlock for the seat of a loved one and he Plans to target his heart.

Poor John Watson.