The Alpha Delta Phi fraternity member's Facebook page has been deactivated. His sparsely used Twitter account doesn't offer much insight — though his background photo of an extreme closeup of teeth (above) is kind of creepy, considering…
But it's Harrouff's YouTube channel that offers glimpses into his more sadistic side.
In the channel's description, which was activated only five months ago, the 19-year-old writes, perhaps a bit too telling:
"I've got a psycho side and a normal side. I've lost my mind. Help me find it."
The videos mostly highlight his affinity for bodybuilding and freestyle rap, but also showcases his love of weapons. In a video from July 13, Harrouff prepares for a day of fishing by carrying a semi-automatic pistol through the house — looking down the barrel after pretending to pull the trigger.
The next clip shows Harrouf walking through the house carrying a knife — in a scary movie style POV shot — before handing it to another man preparing fishing poles.
His online activity accelerated leading up to the day when he randomly attacked and killed a middle aged couple in the garage of their Tequesta home.