The firearm found on the suspect in the murder of the UnitedHealthcare CEO is believed to have been an untraceable ghost gun, according to police.

The shooting occurred Monday in a parking lot near the medical center in San Antonio, Texas.

The Supreme Court is considering whether self-assembled guns, parts kits and partially complete firearm frames or receivers can be regulated as traditional firearms.

The 2024 presidential candidates have spoken about their policy ideas related to gun violence and gun regulations, as gun deaths remain a major problem in the country

The Academy Award winner reflected on his career and using his platform to inspire gun reform.

When Jorge Leon invented a device that turns Glock pistols into fully automatic weapons, he thought it would be used for the good.

Active shooting incidents in the U.S. declined by 4% from 2022 to 2023, the FBI said.

In a near-unanimous decision, 8-1, the justices ruled in favor of laws preventing banning guns from individuals who have restraining orders against them.

The Supreme Court's 8-1 decision to restrict firearms to people with domestic violence restraining orders is seen by many as a common sense method to curbing shootings.

The U.S. Supreme Court on Friday upheld a federal ban on firearms for domestic violence offenders.

Those convicted under Turks and Caicos' firearms ordinance of possessing ammunition could face a minimum sentence of 12 years in prison.

The devices that make some rifles fire almost like machine guns is now allowed on store shelves again.

As the Supreme Court prepares to rule on U.S. v. Rahimi, ABC News' Linsey Davis speaks with survivors and delves into the implications of putting guns back in the hands of domestic abusers.

A new study shows nearly half of U.S. households aren't storing guns securely.

Hayden Espinosa, 24, allegedly sold illegal firearms to an undercover NYPD officer while in a federal prison in Louisiana.

Bryan Hagerich was arrested while traveling to Turks and Caicos after hunting ammunition was found in his luggage. After being released, he and his wife discuss their experience.

ABC News' Phil Lipof spoke with anthropologist and associate professor at Brown University Ieva Jusionyte about her new book, "Exit Wounds: How America's Guns Fuel Violence Across The Border."

Tyler Wenrich was sentenced to time served and a $9,000 fine for bringing hunting ammunition in his luggage to Turks and Caicos. ABC News' Matt Rivers reports.

Bryan Hagerich pled guilty to possessing 20 rounds of ammo and was sentenced to 52 weeks plus a $6,700 fine.

Rep. Guy Reschenthaler was part of a bipartisan group of lawmakers that traveled to Turks and Caicos, hoping to secure the release of the Americans accused of illegally possessing ammunition.

Former President Donald Trump attended a National Rifle Association conference on Saturday, promising members that he would roll back every one of President Joe Biden’s gun-control policies.

Donald Trump promised attendees at the NRA convention in Dallas that he will protect gun rights and roll back some of President Joe Biden's gun reforms.

Service was interrupted at a Louisiana church when a teenager brandished a gun after opening a back door.

ABC News spoke with historian and author Dominic Erdozain about his new book, "One Nation Under Guns: How Gun Culture Distorts Our History and Threatens Our Democracy."

ABC News' Phil Lipof spoke with historian and author Dominic Erdozain about his new book, "One Nation Under Guns: How Gun Culture Distorts Our History and Threatens Our Democracy."

Should teachers be allowed to carry firearms to protect their students? ABC News' Morgan Norwood has the latest on the new legislation in Tennessee that looks to combat school shootings.

The Supreme Court said Monday it would take up the issue of "ghost guns" next term.

ABC News’ Rachel Scott spoke to Fred Guttenberg, the father of 14-year-old Parkland victim, Jamie, six years after the school shooting about how new gun regulations are saving lives.

Sen. Chris Coons, D-Del, talks about advancing gun safety by expanding background checks for those who sell firearms.

Under new federal rules background checks will be required on buyers at gun shows.

The ATF is now requiring anyone selling firearms commercially to register and do background checks. The rule covers gun shows, online sales, and brick and mortar sales.

The Biden administration on Thursday announced they are closing what is often known as the "gun show loophole."

The Biden administration announced on Thursday it will tighten up the definition of what it means to be "engaged in the business" of selling firearms.

The independent commission investigating what led up to Robert Card's Oct. 25 mass shooting in Lewiston, Maine, released an interim report on what they have found.

ABC News' Devin Dwyer talks exclusively with the creator of the bump stock, who is defending his invention after it was banned by the Trump administration in 2018.

Bump stock inventor Jeremiah Cottle speaks to ABC News as debate over his controversial firearm accessory goes before the U.S. Supreme Court in Garland v. Cargill

Shannon Cortez Gooden was issued the lifetime firearms ban following a 2008 conviction for second-degree assault with a deadly weapon, according to court records reviewed by ABC News.

A new gun safety initiative was announced last week at a White House event. Education Secretary Miguel Cardona discusses the new initiative.

The National Rifle Association operated as “Wayne’s World,” a lawyer for the New York Attorney General’s office said Monday during opening statements.

The admission, hours after Wayne LaPierre's resignation, comes ahead of a trial scheduled to begin Monday.

Sens. Martin Heinrich and Angus King discuss new legislation that would help protect communities from gun violence while safeguarding the right to own a firearm.

The Gun Violence Archive shows that there have been more mass shootings than days in 2023 so far.

ABC News’ Pierre Thomas reports on how one girl survived a bullet that could have taken her life on “This Week.”

McKinley Nelson is using basketball as a way to combat gun violence and mental health issues in his community.

Maine's yellow flag law has been invoked 36 times since the Lewiston shootings, more than 30% of all weapons restriction orders since the law went into effect.

Polling says most Americans want stricter gun laws but don't think they'll get them.

A majority of Supreme Court justices on Tuesday appeared inclined to uphold a 30-year-old federal ban on firearms for people under domestic violence restraining orders.

ABC News’ Devin Dwyer reports on the Supreme Court as they consider whether to uphold a federal ban on guns for those subject to domestic violence restraining orders.

The case is a challenge to the federal law that denies weapons to anyone subject to a domestic abuse order.

ABC News’ Devin Dwyer breaks down the arguments before the Supreme Court on a federal ban on gun ownership for people under domestic violence restraining orders.