(WSVN) – The term “fake news” has exploded into a national conversation about separating fact from fiction. But for one South Florida father, online lies and conspiracy theories are a very real reminder of his son’s murder, and he’s fighting back. 7’s Brian Entin has our special assignment report “Cruel Intentions.”

On Dec. 14, 2012, Lenny Pozner dropped his three kids off at Sandy Hook Elementary School in Newtown, Connecticut.

Only two survived the day.

Lenny Pozner: “The footprint of the shooter was right next to all three of my children.”

Noah was the youngest of 20 first-graders and six adults killed in the massacre.

Lenny Pozner: “He loved to tell jokes, he loved his family, he loved to laugh. He loved being a 6-year-old.”

Lenny moved to South Florida after his son’s death. We’re using old pictures of him.

He asked we not show his face today. That’s because in the years since the tragedy, he says he has been harassed, even threatened by people who believe that the horror at Sandy Hook never happened.

Voicemail from woman: “You’re going to die. You’re going to rot in hell. Death is coming to you real soon, and there’s nothing you can do about it.”

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