The National Rifle Association has been calling for an end to gun violence for years, and President Donald Trump has been a vocal proponent of gun control.
But on Wednesday, a Colorado Springs school shooting left one person dead and nine injured.
The shooting happened at Columbine High School, where a gunman killed 16 students and six staff members in 1999.
It’s a horrific tragedy that’s led to gun control measures in many states.
Here are five things you need to know about the shooting in Colorado Springs.
The shooter was a known member of a domestic violence group.
Police have identified the shooter as a 29-year-old man, but the shooter was not related to any known domestic violence victims, according to The Associated Press.
Police are searching for the shooter’s next of kin, and authorities are also asking people to be on the lookout for the suspect’s car.
According to ABC News, the gunman drove to Columbine from Colorado Springs and was wearing a black shirt with a “no white America” message.
“We are not aware of any white supremacy or any racism in the vehicle,” Columbine Police Chief Tim McHenry said at a news conference.
Columbine school: ‘I can’t believe it happened’ Students gather outside the school after the shooting.
The school has reopened, but it is still a lockdown.
The Colorado Springs Police Department said there was no threat to the public.
“Our thoughts and prayers are with all of those impacted by this tragedy and those who have lost loved ones,” the department said in a statement.
The gunman had a criminal history.
He was convicted of a felony in 2001 and sentenced to a minimum of eight years in prison.
Police say he was also arrested for a misdemeanor battery in 1998, but that charge was dropped.
Police said the suspect was arrested after he drove to the school from another location.
Authorities said the gunman was armed with a handgun and a handgun he was using at the time of the shooting and was not carrying any other weapons.
Police searched for the vehicle, and police said there were no other victims.
Columbines parents are not on lockdown.
Columbina High School has reopened to students, faculty and staff.
The Columbine community is still reeling from the shooting, but many parents were not on campus on Wednesday.
“I don’t know how you’re going to survive that,” one Columbine parent told ABC News.
“You can’t, I mean, you don’t want to know what it is you’re missing.”
There are conflicting reports of the shooter.
A family member said the shooter had been shot multiple times and died at the scene.
Police told ABC affiliate KMGH that the shooting was not life-threatening, but some residents were questioning why there were so many armed police at Columbines home.
“It’s pretty scary when you think about what’s happening around you and the fact that there are armed police all around you,” Columbines resident Marissa Dominguez told KMGH.
“What else can you expect?”
Columbines police chief Tim McAllister told KMHN that the gunman’s father was a person of interest and had been detained by police.
“The father is the person of concern,” McAllisters statement said.
“He has not been charged.
We have not made any arrests at this time.”
There were no visible signs of a struggle in Columbines backyard.
The home of the suspect is in the neighborhood of South Pines, just a few blocks away from Columbine.
Police were called to the home shortly after 10 a.m. to investigate reports of a shooting.
Police arrived at the home about three hours after the first 911 call.
Police found no apparent struggle or any apparent injuries on the property, police said.
The suspect is not believed to be a threat, police told KMHE.