I also really like Luisa, although I didn't initially when she met Cole (and was sleeping with loser Scotty).
I am fairly certain that Ben tied up his wife in the second version, not in the first. Of all the things he said, that might be the biggest red flag. When he shot the teen in version #1, I honestly thought it was in the heat of the battle thing. Although not right, it does happen frequently in war and sometimes, in police shootings.