For example, he showed officers how to kill a sentry by having a firm grip on the back of his head with one hand and stabbing him in the carotid artery with the other, draw, and then retract. ###>Par exemple, il mime la façon de tuer une sentinelle en lui tenant fermement la tête en arrière d'une main et en lui tranchant la carotide de l'autre, ou les dessine, puis se rétracte.