Smith presents a case study in institutional failure — already convicted of multiple murders and imprisoned, he allegedly continued killing within the system meant to contain him. His 1981 killing of corrections officer Donna Payant inside Green Haven Correctional Facility forced a reckoning with how maximum security prisons managed their most dangerous populations. The case drew particular attention because of Payant's role as an on-duty female officer, a relatively new presence in such facilities at the time. Decades later, Smith remains in near-total isolation, still contesting the conviction that may define his legacy most.

The June 2025 attacks on Minnesota legislators marked one of the most direct acts of political violence against elected officials in recent American history. Boelter allegedly targeted sitting lawmakers in their homes, killing a state House Democratic leader and her husband while also targeting others — a coordinated pattern reflected in the stalking charges filed alongside the murder counts.

Hindley's case became one of the most closely examined in British criminal history, in part because her role challenged prevailing assumptions about women and violence. Over two years in the early 1960s, she and Ian Brady abducted and killed five children in the Manchester area, at least four of whom were sexually assaulted. For decades she maintained her innocence before confessing in 1987, and one victim — Keith Bennett — was never recovered despite her participation in searches of Saddleworth Moor.

Released early from a prior conviction for gang rape, Tchayka was barely nineteen when he carried out four knife killings in Moscow over the span of two weeks in early 1994. His targets were women wearing fur coats, and the brutality of the attacks — particularly the first, which left the victim identifiable only to her son — prompted a notable police operation involving plainclothes officers used as decoys. He was ultimately arrested not through that operation but through a detective's observation of his clothing and demeanor in a metro station, after which he confessed.

Her ascent from secretary to First Lady tracked closely with her accumulation of influence, land, and wealth during one of Zimbabwe's most turbulent decades. Widely known by the nickname "Gucci Grace" for her extravagant spending during a period of hyperinflation and mass poverty, she was also implicated in violent incidents — most notably the assault of a model in South Africa — that drew international attention. As her husband's health declined, she positioned herself as a potential successor, reshaping ZANU-PF factions in ways that ultimately contributed to the conditions for the 2017 military intervention.