>> please come and help us. >> okay. i'll get a hold of the ambulance. all right? >> yes. >> the crime became a mystery, a whodunit? >> it's a puzzle. almost a game of three card monte. >> it made many people in town wonder about one particular family, about what had been going on behind the closed doors of their home. >> how well do you really know your neighbors? how well do you really know the people that surround you? >> get one? want me to feed it to him? >> our story begins with stephen watkins who had grown up in tiny chandlerville in rural central illinois, population 700. he'd had the kind of ideal childhood he wanted to recreate on his own. >> i think that was probably his biggest goal in life, was to have that family that he grew up with. stephen's parents, penny and dale, say even as a kid their boy was always holding his