Internet trolls say a bunch of senseless and meaningless things on cyberspace for no reason at all, but some of it is too much to slide by unnoticed.

41-year-old Darren Burton, who went by the name of Nimrod Severn on Facebook, regularly trolled the Facebook pages of murdered children, leaving comments like “Rot in h***” for everyone to see. BBC tracked him down for a surprise, in-person interview in which Burton’s wife and kids (yes, he has kids) heard the kind of stuff he was putting on Facebook firsthand. When BBC asked Darren if he knew the effects his comments had on the families of the murdered children, he responded with “Well yeah. F*** em.”

When BBC aired its documentary on unmasking Internet trolls, they included Darren’s real name and address. His Facebook page quickly became filled with public hatred for him, forcing him to delete his account and move away.