While mass killing is not necessary for genocide to have been committed, it has been present in almost all recognized genocides. A near-uniform pattern has emerged throughout history in which men and adolescent boys are singled out for murder in the early stages, such as in the genocide of the Yazidis by Daesh, the Ottoman Turks' attack on the Armenians, and the Burmese security forces' attacks on the Rohingya. Men and boys are typically subject to "fast" killings, such as by gunshot. Women and girls are more likely to die slower deaths by slashing, burning, or as a result of sexual violence. The jurisprudence of the International Criminal Tribunal for Rwanda (ICTR), among others, shows that both the initial executions and those that quickly follow other acts of extreme violence, such as rape and torture, are recognized as falling under the first prohibited act.