Now they go before a judge. There have been cases in Pakistan where the judges have let parents off for honor killings like this, or even praised them.
I don’t know if that will happen this time. I note that the murderous parents accused a neighbor of killing their daughter. Maybe that’s a no-no.
I rather doubt it. islam enshrines deceit as a core value. See also taqiyya, hudna, kithman, and muruna.