Something this layered and suspenseful that is based on actual events doesn't come along often and when it does it should be given more than 3 seasons to establish a fan base. Yes some of it is incredulous but there would have to be some of that to offset the reality and gore of violence that is based on reality. Add to that a fine cast of actors and you get a winning combination. Such a shame it was canceled to make room for something fluffy. It's hard to understand why this wasn't renewed, especially given the cliffhanger at the end of Season 3, along with unfinished story lines that would have been exciting to explore. Why is it that once you're hooked on the drama and the characters a network decides to cancel? I don't understand why networks don't query their audiences before making these decisions! There's a reason Idol and other talent shows allow audiences (customers) to vote!!!