The Final Problem

Anonymous asked: Just want to clear something up you said: Since Jim was the one who killed Carl and kept the shoes all these years... Was it confirmed that Moriarty is the killer? Sherlock said he was just a kid when that crime was committed, do you believe Moriarty is much older than Sherlock or committed the crime at as a child? Possibly a classmate of the swimmer? Keep up the good work.

The Great Game:

Man (speaking for Jim): Clever you. Guessing about Carl Powers. I never liked him. Carl laughed at me, so I stopped him laughing.

John: Anything on the Carl Powers case?

Sherlock: Nothing. All the living classmates check out spotless, no connection.

John: Maybe the killer was older than Carl?

Sherlock: The thought had occurred.

John (speaking for Jim): Nice touch, this. The pool, where little Carl died. I stopped him. I can stop John Watson, too. Stop his heart.

So Jim definitely killed Carl. Jim wasn’t a classmate of Carl’s, but was probably close to the same age based on the comment about Carl laughing at him.