Missing body with feather trail is consistent with a fox. Fox live everywhere pretty much. I've seen them in the city just as often as in the country. They will also hunt day or night if hungry, as with any predator, it doesn't matter to them. Raccoons and possums will typically kill and eat on spot, usually starting at the head and working down to the breast meat and possums are known for eating the entrails. Possums will hardly carry off a kill, raccoons may carry off a kill, but the like to eat things close to where it was killed. In addition, raccoons become really aggressive when it comes to killing. There's usually a lot of blood and they end up killing multiples in a frenzy. We lost an entire flock to raccoons a few years ago and only one or two were eaten, the rest were just killed.
When a fox attacks, they sneak up on the animal and go for the neck and try and kill it as quick as possible. They will carry their prey off and eat it back at their den or bury it for later. They are very opportunistic.