Last Intruder (SPOILERS)

Did anyone else think the last intruder was the husband?

Or, maybe in Vince's mind it was, hence the merciless pulping?

I doubt their training would say to kill a disabled attacker who could at least indicate if more people had infiltrated the house... or be left to be interrogated by the cops.

That is, if the cops wouldn't just kill Vince.

My guess is Denis, the wife & kid were killed on the way to the airport and the cops or a "cleaner" would get Vince.

Voila!