Visible crew/equipment: When we first see the "Tooth Fairy" he is lifting weights in a room full of mirrors. If you look close, you can see one or more crew members reflected in some of the mirrors. The most obvious is a man standing, whom I am guessing to be the director or a grip.
Visible crew/equipment: When Dolarhyde wakes up after the night spent with Emily Watson he notices she is gone. He runs naked all over the house looking for her. At the moment the camera turns from right to left to follow him when he runs towards the stairs to go up there is something (a piece of equipment or a hand) visible on the left side of the screen. (01:29:40)
Answer: His choices had to do with the layout of peoples' property. At his job, he studied customers' family video tapes that contained scenes of their homes and yards. He looked for seclusion around the properties, easy-access back entrances, whether there was a family dog that would bark, and so on.
raywest ★
But what was his reason for killing them? Was it because he saw a happy family and he was angry because he never had one or because he saw a life that he would never have?
He chose the houses that had big backyards. During the Edward Norton/Lecter interaction, Lector says something about how blood looks in the moonlight.