I personally consider a crime passionel to be something completely different from an honor killing. the name says it all. the first is done individually, by someone who cannot bear it. the second is done in cooperation with several people, in order to save the honor of the family... so the one out of love, the other out of vengeance. both are not to be excused and horrible. but I find it just a bit worse when an entire family agrees to take vengeance and nobody tries to stop it.