Do you think that the people showing up to supposedly molest a minor are responsible for ruining their own lives?
I think they already have.
It is a legitimate function of law enforcement to deal with these people.
But there are rules in place for this sort of thing. The rules are there for a reason. Many of these rules are "written in blood", as they say, because they are the result of lessons learned when people died.
NBC threw all of those rules out the window, and a man died.