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

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.

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.

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

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."

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

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

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.

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

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.

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

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.

The U.S. Supreme Court on Tuesday will hear arguments over a 30-year-old federal ban on firearms for people under domestic violence restraining orders.

Mass shootings shine a spotlight on the gun laws of the states in which these tragedies happen.

Rep. Jared Golden, who lives in Lewiston, Maine, said that in light of the recent mass shooting in his town he was changing his view on banning assault-style weapons

Hours before the Maine mass shooting, the Senate approved an amendment that would limit background checks for veterans and service members with mental health issues.

Maine's gun laws have been thrust into the spotlight following the mass shooting in Lewiston.

A bill in Ohio that would remove sales tax for items such as gun locks and secure gun storage lockers is getting wide support.

Comedians Wanda Sykes, Margaret Cho and Billy Eichner appear in "Just Joking," a new gun violence PSA to show the importance of taking gun violence seriously.

Advocates call the first-of-its kind office a win for the gun-safety movement.

The Migos rapper lost his fellow band member and nephew Takeoff to a shooting in November 2022.

A federal judge granted a temporary restraining order against the New Mexico governor's order suspending the right to carry firearms in public in and around Albuquerque.

Emergency orders were issued by New Mexico Gov. Michelle Lujan Grisham suspending the right to carry firearms in public in and around Albuquerque.

New Mexico Gov. Michelle Lujan Grisham has temporarily banned the right to carry firearms in public in Albuquerque in response to recent gun violence.

The ATF moves to close what gun control advocates have termed the "gun show loophole" by narrowing the definition of those "engaged in the business" of a firearms dealer.

The Illinois Supreme Court found the state's assault weapons ban constitutional. It was passed after the Highland Park shooting last year.

A shooting that erupted in a Houston park and left a pregnant woman dead and four other people injured, marked the 400th mass shooting in the United States in 2023.

Just days after a man wielding two alleged ghost guns shot seven people, five fatally, Philadelphia leaders sued two companies that make untraceable weapons.

Thousands of women participate in a sit-in at the Colorado state Capitol Monday, calling on Gov. Jared Polis to sign an executive order to ban guns.

A proposed new law would make it a felony to manufacture a gun using a 3D printer in New York.

Colorado-based weapons startup BioFire Technologies has introduced a "smart gun" that uses smartphone-like technology to keep it from being fired by unauthorized users.