Thursday marks five years since the mass shooting at Sandy Hook Elementary School in Newtown, and Congresswoman Elizabeth Esty recognized the anniversary last night by paying tribute to the victims.

Esty represents Newtown and is a vice chair of the House's Gun Violence Prevention Task Force.

She read the names of the 20 children and six staff members who were killed in the shooting on the Congress floor, and also said a few words.

"Since the horrific shootings in Newtown in my district, 170,000 Americans have been taken from us,” says Esty. “Sons and daughters of this great country. 170,000 souls. We should just reflect on that. What that means. What each and every one of those people might have done."

In light of the anniversary, Sandy Hook Promise, a nonprofit aimed at ending gun-related deaths, released a PSA called Tomorrow's News.

It portrays the devastating impact of gun violence and the many opportunities to prevent it.

The video previews how a mass shooting and its aftermath will go down.

It goes on to show two boys who claim to have bullied the suspected shooter.

The video also features a police officer who says people will likely come forward after the shooting, saying the alleged shooter gave clues on social media that he was going to carry out the attack.

It ends with this powerful message, “You can stop tomorrow's shootings if you recognize the warning signs today.”

Sandy Hook Promise also conducts "Know the Signs" training programs, which teaches students and adults how to identify warning signs and signals of gun violence in the hopes they will intervene before a tragedy occurs.