The Sandy Hook Promise released a graphic PSA called 'Back-To-School Essentials."
The video gives a gut-wrenching look at the terrors of what students experience during a mass shooting.
It starts very upbeat and then takes a dark turn when students realize there is a mass shooting going on.
The PSA ends by emphasizing that mass shootings are preventable if you know the signs.
What do you think of the PSA?
To read the more on this story click here