A shocking incident took place in Florida last week. The suspected gunman accused of killing 17 people at a Florida high school this month tried to fire at fleeing students from the building's third-floor windows, but the high-impact windows didn't shatter, a state senator said.

State Sen. Bill Galvano said authorities told him it would have been easy for the suspect, identified as 19-year-old Nikolas Cruz, to open the windows. "Thank God he didn't," Galvano said. He said he was given a tour of the school and was shown bullet marks on the glass. After he fired several rounds, Cruz reportedly dropped his weapon and hid among the crowd as students and faculty evacuated Marjory Stoneman Douglas High School in Parkland, Florida.

Police captured Cruz over an hour later in Coral Springs, located about a mile away. He was taken to a local hospital and then released into police custody. Cruz has been charged with 17 counts of premeditated murder. Fourteen others were wounded in the shooting, including several with life-threatening injuries.

State of security in high schools is being questioned everywhere. Meanwhile, students in the city are rallying under the hashtag #NeverAgain movement to lobby for an end to gun violence.

To further support this movement gun owners are posting pictures and videos of destroying guns online. A video has been viewed more than 20 million times after the person posted it on Facebook with the hashtag #OneLess. The footage shows Mr Scott Pappalardo cutting his AR-15 rifle in two.

In the six-minute video, Mr Pappalardo explains he is a “firm believer” in the second amendment – the right to keep and bear arms – and even has it tattooed on his arm.

Fact: three-in-ten American adults say they own a gun. Gun ownership cuts across demographic groups but is more concentrated among some. White adults are more likely than Blacks or Hispanics to own guns, and white men are particularly likely to be gun owners: 48% of white men say they currently own a gun, compared with 24% each of white women and non-white men and 16% of non-white women. Americans with less education also are more likely to be gun owners, a gap that is widest among whites.

However, Mr Pappalardo goes on to say that he does not think anyone should be able to own a weapon “that can cause such death and destruction”. He points out that even those who own guns legally are “capable of snapping and committing a horrific crime” and that even if he sold his gun, he could not live with the thought of it being used in such a massacre. He says: “So I’ve decided today I’m going to make sure this weapon will never be able to take a life; the barrel of this gun will never be pointed at someone”.

“I mean think about it – is the right to own this weapon more important than someone’s life? A weapon like this that can cause so much death and destruction. “Look at the pictures of those victims. Is that right more important? I don’t think so."

The video has since been shared on Facebook nearly 400,000 times and has prompted a flurry of social media posts featuring pictures of destroyed weapons accompanied by #OneLess.

Here’s the link to the video: https://www.youtube.com/watch?v=EDx6Ys4P5_Q