You start searching around for clues and tracks.
 The toolkit scans the environment, and suddenly somebody jumps out of the
bushes!

A scrawny-looking man hobbles out of the bushes and gives you an evil glance.
'Fine fine. I know when I'm beaten,' says the man, 'I'll go and surrender
myself.'
The man hobbles away and disappears into the bushes before you can even react.

 Congratulations, you've solved the case!

 The detective tells you 'Come by me and I'll give you your proper reward for
your troubles! (use 'escape' to leave)'