"There's no question that they were the difference makers", Moskowitz said. "Are there any children making laws?"
His teenage son Hunter added: "Let's get the rest of the country to follow our lead and let's make schools safe".
Speaking on behalf of the 17 families, Tony Montalto, whose 14-year-old daughter, Gina, was killed, called the new law the "beginning of the journey" to prevent "future acts of horrific school violence".
This school shooting, like the many others before it, is undoubtedly a tragedy but the question of whether or not we will learn anything from it remains to be seen.
It raises the minimum age to buy rifles from 18 to 21, extends a three-day waiting period for handgun purchases to include long guns and bans bump stocks that allow guns to mimic fully automatic fire.
"At 18 years of age, law-abiding citizens in this country are considered adults for nearly all purposes and certainly for the purposes of the exercise of fundamental constitutional rights", said the lawsuit, which named Attorney General Pam Bondi and FDLE Commissioner Rick Swearingen as defendants.
Numerous students held signs reading "Never again" and "End gun violence".
He said: "I'm taking and swallowing that poison pill". "I know there's lots of things in there that are a start, and there's in there that's going to bring some pieces back together for Parkland". Ms Fusco said she expects Mr Scott to sign the bill.
Sen. Bill Galvano, a Bradenton Republican and one of the main sponsors of the legislation, says he expects Scott will sign it. As a model, she cited a program in Florida's Polk County where teachers or other employees at two private universities have trained with the sheriff's office so they can carry concealed weapons on campus.
Instead, only teachers who are in the Junior Reserve Officers' Training Corps program or who are current members of U.S. Reserves or National Guard, or are current or former law enforcement officers are allowed to participate in the guardian program.
The Broward County Sheriff's Office on Thursday released audio of 10 of the 81 calls its 911 center received during the February 14 shooting at Marjory Stoneman Douglas High School that left 17 dead and its aftermath.
Democrat member Joseph Geller described the guardian programme as a "poison pill" in an otherwise necessary bill. Nevertheless, Democrats voted 21-9 in favor of the new legislation.
The bill does not ban the sale of the AR-15 assault rifle - the weapon used by Nikolas Cruz - one of activists' key demands.
Cruz was formally charged on Wednesday with 17 counts of first-degree murder.
The measure also makes it easier for police to temporarily seize guns from people involuntarily committed due to mental illness or deemed a danger to themselves or others by a court. "We look forward to determining how these measures might positively impact our school and safety operations moving forward", the district said in an e-mailed statement Friday afternoon.
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