Where were the police?
This is something that bothered me most about this film.
Gordon kills his family and goes to work for the next week as normal.
Gordon has to be the #1 suspect in this double homicide. Why weren't the cops interviewing the people that would have seen him most recently? Friends, family, coworkers? It's not like he was trying to conceal his location.
Does nobody watch the news? There's no way a mother and child would be brutally murdered without it making the news. Yet none of the crew show up one day and say "Wow Gordon, your family was just horribly murdered and stuff".
Also at the end where Jeff's getting charged by Gordon covered in blood and wielding a sharp instrument, all he can think to say is "sorry I ate your oreos"?