Gray's crimes in 1994 followed a pattern closely tied to financial motive — she targeted elderly women and used their credit cards and cash to fund shopping sprees shortly after each killing. The survival of a fourth victim proved decisive, providing investigators with a direct identification that led to her arrest. Her case drew attention to how ordinary consumer behavior left a traceable record that ultimately worked against her.

Mosby's inclusion here reflects the contested nature of the site's scope — his guerrilla effectiveness against Union forces during the Civil War made him a celebrated figure in the Confederacy, and his postwar life as a Republican attorney and federal official complicates any simple accounting. What keeps him in the historical record is the 43rd Battalion's sustained disruption of Union operations in northern Virginia, leveraging local knowledge and rapid dispersal to remain largely uncaptured throughout the war. His recent removal from the Army Ranger Hall of Fame signals an ongoing national reassessment of how military service rendered in defense of the Confederacy should be commemorated.

Among the criminals swept up in the Depression-era bank robbing wave, he stands out for one particular distinction: no other individual has killed more FBI agents. Running alongside Dillinger and earning the designation "Public Enemy Number One," his career was short and ended in a suburban shootout in which he was fatally wounded — but not before taking two agents with him in the same engagement.