Syrian rebels attempting to overthrow the Syrian government have been implicated in beheadings too. North America
Mexico
Miguel Hidalgo y Costilla, Ignacio Allende, José Mariano Jiménez and Juan Aldama were tried for treason, executed by firing squad and beheaded during the Mexican independence in 1811. Their heads were on display on the four corners of the Alhóndiga de Granaditas, in Guanajuato. During the Mexican Drug War, some Mexican drug cartels turned to decapitation and beheading of rival cartel members as a method of intimidation. This trend of beheading and publicly displaying the decapitated bodies was started by the Los Zetas, a criminal group composed by former Mexican special forces operators, trained in the infamous US Army School of the Americas, in torture techniques and psychological warfare. United States
The United States government has never employed beheading as a legal method of execution. However, beheading has sometimes been used in mutilations of the dead, particularly of black people like Nat Turner, who led a rebellion against slavery. When caught, he was publicly hanged, flayed, and beheaded. This was a technique used by many enslavers to discourage the "frequent bloody uprisings" that were carried out by "kidnapped Africans".
Ted Bundy, Jeffrey Dahmer
Category B (cold/preservative), e.g. Gary Ridgway, Dennis Nilsen, Carl Tanzler
Category C (warm/destructive) e.g. Andrei Chikatilo, Joseph Vacher
Category D (warm/preservative) e.g. Robert Yates, Earle Nelson
Category E (dabblers) e.g. Richard Ramirez, Mark Dixie
Category F (catathymic⁠ ⁠— impulsively and explosively lashing out)
Category G (exclusive necromutilophiles) e.g. Robert Napper, Peter Sutcliffe
Category H (sexual cannibals & vampires) e.g. Albert Fish, Peter KürtenDabblers have transitory opportunistic sexual relations with corpses, but do not prefer them. Catathymic necrophiliacs commit postmortem sex acts only while in a sudden impulsive state. Exclusive necromutilophiles derive pleasure purely from mutilating the corpse, while sexual cannibals and vampires are sexually aroused by eating human body parts. Category A, C, and F offenders may also cannibalise or drink the blood of their victims. Research
Humans
Necrophilia is often assumed to be rare, but no data for its prevalence in the general population exists. Some necrophiliacs only fantasise about the act, without carrying it out. In 1958, Klaf and Brown commented that, although rarely described, necrophiliac fantasies may occur more often than is generally supposed.Rosman and Resnick (1989) reviewed 123 cases of necrophilia. The sample was divided into genuine necrophiliacs, who had a persistent attraction to corpses, and pseudo-necrophiliacs, who acted out of opportunity, sadism, or transient interest. Of the total, 92% were male and 8% were female. 57% of the genuine necrophiliacs had occupational access to corpses, with morgue attendants, hospital orderly, and cemetery employees being the most common jobs.