Shell casings found at the scene where a masked gunman shot dead UnitedHealthcare CEO Brian Thompson in front of a New York City hotel contained words inscribed on them, according to multiple reports.

North Carolina's State Crime Lab has reached a major milestone by generating 10,000 investigative leads through NIBIN, a national database that matches unique "fingerprints" on firearm shell casings.

Police are investigating after a bullet shell was left in a Dearborn High School bathroom Thursday, officials said. They said school staff initiated a soft lockdown as a precaution and notified police ...

KALAMAZOO, MI — A bullet ricocheted off of something before it went through the door of an apartment and hit a man inside, killing him, according to court testimony. Jamyre Cameron Thompson is facing ...