And other posters have noted that absolutely no evidence has been forthcoming that would indicate the murder victim actually was a pedophile. It is quite possible that he was a victim of a "random" murder just for fun. I do not know the facts. Do you? I find the incident disturbing on several levels.
It would not be the first time that a cover lie was used to justify a murder.
In a system of law and order we would have a through investigation of charges and consideration of evidence before imposing any sanctions on an individual. Vigilante action would be unnecessary, undesirable, and impermissible.
We no longer have a system of law and order.
We have "pretense-of-law". Persons with high-level political connections can do absolutely anything they want to do without regard for laws. And they don't even bother to hide it anymore. "Laws are for little people".
Lower-level Criminals are commonly released from trivial sentences to prey on the general population while Innocents are all-to-frequently convicted. Middle-class individuals who offend the ruling politicians may be punished with bogus charges, monstrous legal expenses, and even jail terms. It has been justly said that "the process is the punishment". There is no law and very little order in any of this.
"Pretense-of-Law" is what we have now.
People at all class levels have come to understand that the police will not protect them. The job of the police and the courts is to enforce the orders of the rulers. They do that fairly well. But we have too many insane and evil rulers. They do not want to be restrained by laws.
That is why the vigilante narrative is becoming increasingly popular; never mind the the horrendous abuses of that narrative that are certain to result. The system will not protect you but maybe your neighbors can.
Or maybe not. I am a little unsure about some of my neighbors. Maybe I would be better off to just leave them all alone and keep a low profile. I highly recommend that plan.
You want to prevent murders done the name of the Vigilance Committee? You want a return Rule of Law? It will require a purge of the entire legislative, judicial, and police system to do that. And very likely that will require a purge of our current rulers.
Scolding those who jump on the Vigilante Narrative is insufficient to fix the problem. The breakdown of law and order is what causes Vigilantes to look appealing.