Did the show get cancelled

and the writers were thinking that it wasn't going to be? Reason I as is that I was shocked that the show's main protagonist is just allowed to disappear w/o much mention at all in the final season. That being Ray Prager.

Also there was zero mention of the other serial killer that drove the corvette that time.

I was looking forward to season 3 and some resolution to these two killers, but we got nothing. Season 3 was entertaining, but i'm guessing they though it would get another season and then the writers would fold back in Ray Prager and the original serial killer also.