The terrorist who killed 12 people and injured dozens more in the 2016 Berlin Christmas Market attack was removed from the country’s surveillance list a month earlier, but he presented five specific warning behaviors prior to the attack according to later analysis. How a better awareness of these warning signs and an understanding of the perpetrator’s history of radicalization might help improve future risk and threat assessment is the focus of the article “‘Jihad Against the Enemies of Allah’: The Berlin Christmas Market Attack from a Threat Assessment Perspective,” published in Violence and Gender.