Luigi Mangione, who was arrested in Altoona, Pennsylvania, is a suspect in the murder of UnitedHealthcare CEO Brian Thompson, ...

Rhonda Hart, mom of 2018 Sante Fe, Texas, school shooting victim Kimberly Hart ... researched tactics used by other mass shooters, sources told ABC News. Tenton Beazley tells "GMA" how he helped ...

Andrew Lester, the man charged in the April 2023 shooting of Ralph Yarl after the ... Steven Salmon, Lester's attorney, confirmed to ABC News on Wednesday that the examination has been filed ...