If you actually watched cop shows on tv, you'd know that some crimes don't
require a complaint, while lesser things do.
I would assume that since this is a low level crime, if the owner isn't
prepared to press charges, then there'd be no witness, and thus no reason
to go on with the prosecution.
When they get robbed a second time, perhaps they will press charges. ON
the other hand, if someone is murdered, that's serious enough that the
state wil prosecute anyway.
Michael