It was one of the worst school shootings in American history, but some people insist that the Sandy Hook massacre never happened. They post YouTube videos and spread rumours online, and their false theories have been repeated by a media mogul conspiracy theorist who has been linked to Donald Trump. Now, after years of harassment, the families of the victims are fighting back online.
Lenny Pozner clicks on a YouTube video showing his street and the outside of his home. The camera zooms in on his balcony, and his address and a route to his door flash up on the screen.
There's no narration on the video - but there doesn't need to be. The message is clear: "We know where you live."
Because of videos like this one - there are dozens on YouTube, and more appear ever day - Pozner doesn't want to disclose the city where he now lives. He's had death threats and has moved several times in recent years.
http://www.bbc.co.uk/news/amp/39194035