THE world is again aghast at how men, women and children have been slaughtered in a mass shooting attack in the United States.
These mass shootings - that is, four people being injured or killed in an attack - were happening once a day based on figures in 2015. Once per day.
Even knowing those startling figures, it feels as though the bloodshed caused by these massacres is increasing. It's not your imagination.
In the past five weeks alone - the US had two of its deadliest mass shootings in history.
The Las Vegas shooting killed 59 people including the gunman, making it the worst attack of its kind in a country notorious for mass shootings.
The Sutherland Springs church massacre this morning ranks at #5 with 27 dead including the shooter.
Australia's worst mass shooting in history was the Port Arthur Massacre in 1996, which killed 35 people and injured 23. It prompted national reform to gun laws led by then-Prime Minister John Howard.
The rest of the top five most deadly mass shootings in the US all occurred in the past decade, starting with the Virginia Tech shooting that killed 33 in 2007.
Here are more details on the worst five mass shooting attacks in US history:
2017 LAS VEGAS SHOOTING
Gunman opens fire on a crowd enjoyed the Route 91 music festival on the Las Vegas strip.
58 were killed, 546 injured.
His semi-automatic rifle was legally modified so it would behave almost as a fully automatic weapon, meaning more shots could be fired on his targets - innocent civilians.
2016 ORLANDO NIGHTCLUB SHOOTING
A 29-year-old security guard killed 49 people and wounded 58 others at Pulse, a gay nightclub in Orlando, Florida. It has been labelled a hate crime/terror attack.
The shooter was killed following a three-hour standoff with police.
It was the deadliest attack in US history prior to the Las Vegas shooting above.
2007 VIRGINIA TECH SHOOTING
A student at the university shot and killed 32 people and wounded 17 in two separate attacks. Six others were injured as they fled out classroom windows.
This too was the deadliest attack of its kind at the time.
In the first part of the attack, the gunman shot two students dead at a university hall before later entering a second hall where he shot and killed 31 others.
2012 SANDY HOOK ELEMENTARY SCHOOL SHOOTING
While not the deadliest in history, the Sandy Hook massacre was perhaps the most shocking. The gunman shot and killed 20 children aged between six and seven years old.
Prior to the attack, he shot and killed his mother at their home.
The young age of the children killed and the number of fatalities created an enormous discussion over gun control in the United States.
While some states hardened up gun laws in the aftermath of the shooting, national laws designed to strengthen background checks on gun buyers were defeated in the Senate.
2017 SUTHERLAND SPRINGS SHOOTING
A gunman opened fire at the First Baptist Church in the tiny community of Sutherland Springs in Texas on November 5, 2017. At the time of writing, at least 27 are dead including the 14-year-old daughter of the church Pastor.
It is the deadliest shooting of its kind at a church in the US, overtaking the mass shooting at a church in Charleston, South Carolina in 2015. Given how recent this attack is, the numbers and details could be subject to change.
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