Hmm, now that you've mentioned it... And describing the tedious police work he was doing before he ended in there would've been boring anyway... Maybe. ;)
It's definitely a character I want to write more on - like the killer chemist from "A revolutionary product". I think they're two characters that are unpredictable both for me and for the reader, which is exactly why they can be (and are) so awesome.
Definitely worth a revisit. If not in the same setting, at least with the same or similar character. ^^
Maybe the chemist could be called Shanderlock. Nice and mysterious.