This week’s mass shooting in Colorado is reviving calls for more gun legislation from lawmakers and New Jersey residents who have lost loved ones to gun violence.

One New Jersey mother’s priority is school safety. Her daughter was killed in the 2018 mass shooting at Marjory Stoneman Douglas High School in Parkland, Florida.

Piscataway has been a leader in calling for and taking action. Three years ago, the town banned sales of guns and ammo within 1,000 feet of schools, day cares and places of worship to help prevent tragedies.

New Jersey native Lori Alhadeff lost her daughter Alyssa back in 2018. She now runs a group called Make Our Schools Safe, promoting what's called Alyssa's Law. It's already passed in New Jersey, and requires all schools have panic alarms that would automatically send alerts to law enforcement that there's an emergency at the school.

For Alhadeff, hearing about yet another mass shooting is devastating. She knows what the loved ones of the victims are going through.

"It's very painful,” says Alhadeff. “It's very triggering, knowing about those families of loved ones shot and killed yesterday. I definitely think this conversation we are having now needs to happen not when a mass shooting happens, it has to happen on a regular basis. It has to be a top priority for our country."

Alyssa's Law has passed in New Jersey and Florida, but Alhadeff wants it in every state.

In Piscataway, the gun and ammo sales ban complemented six other statewide gun bills signed into law by Gov. Phil Murphy.