I like it, but I have to point a few things out:
Why is the word for what the hands do to the victim censored? From what is read it is obvious that it chokes them to death. Just say that, or remove the evidence of it being choking.
Also, why is the hand owner the prime suspect in the investigation if he killed himself a year ago? It would be better to say something like "The Authority was alerted when it was found that evidence (maybe put fingerprints?) in the investigation lead to it being John Doe, who committed suicide a year ago." Probably not the best way to say it but it's just an example.
This last one is a little nitpicky, but it might be good to get rid of the part in the suicide note that mentions actually making a deal with the devil. Just leaving it with the guy in the suit is much more interesting imo.