FOX19 - Warning: this story may be disturbing to some viewers.
Sandy Hook Promise released a chilling new PSA about gun violence.
The description of the video states, "as the school year winds down, one student finds himself starting an unexpected relationship."
But when Evan finally meets the girl he's been searching for all school year, a gunman appears in the doorway behind them. Students scream and run video fades to black.
The video then reads, "While you were watching Evan, another student was showing signs of planning a school shooting."
It video then goes back through what you just watched, and you can see that student in the background of various scenes, holding a gun, looking at violent videos and being bullied.
In Dec. of 2012, a gunman opened fire at the Newtown school, killing 20 first-graders and six educators.
The video says that gun violence is preventable when you know the signs. To learn more about what to look for, go here.