SEE IT: Sandy Hook Promise’s ‘back-to-school’ PSA provides shocking glimpse into school shootings

On Wednesday, Sandy Hook Promise released a PSA about knowing the signs of a school shooting.
– The video begins with students talking about the items they need to start off their school year
– Moments later, it becomes clear that a school shooting is unfolding—with students using various items to protect themselves or flee
– The PSA ends with a crying girl texting her mother that she loves her while she hides in a bathroom stall
– The video concludes with the following caption: “It’s back to school time and you know what that means.”