The Biden-era regulations require gun makers to perform background checks on people who purchase the weapons kits.

Four people, including a 15-year-old boy, have been arrested and charged with three open counts of murder.

Robert Crimo III entered the guilty plea moments before opening arguments in his trial.

The high school students were planning an attack with pipe bombs and guns, police say.

Andrew Lester, 86, pleaded guilty last week to second-degree assault in the shooting of the teen boy in Kansas City in 2023.

The unarmed teenager was shot in April 2023 after knocking on the wrong door as he went to pick up his brothers. He survived the shooting.

Officer Mindy Cardwell inadvertently "put pressure on the trigger" of the pistol during the traffic stop.

Armed with a pistol, the attacker argued with the 16-year-old victim before opening fire, police say.