“…The number of fatal terrorist attacks in Western Europe has increased in recent years (Hanrahan & Wang, 2017), and a series of high-profile attacks starting in 2015 in France, Belgium, Germany, the United Kingdom, Turkey, Sweden, and Spain have contributed to making such events a prevalent part of the collective consciousness in many European cities. While social media platforms, such as Twitter and Facebook, have been frequently discussed in relation to their role as potential tools for terrorist recruitment, mobilization, and coordination, a particular strand of research is interested in how the same platforms can be used by victims and the general public for creating unity and for exchanging information during and immediately after attacks (Buntain, Golbeck, Liu, & LaFree, 2016; Cheong & Lee, 2011; Eriksson, 2016, 2018; Sumiala, Tikka, Huhtamäki, & Valaskivi, 2016). Crisis points, such as terror attacks, create “information holes” that the public works collaboratively to fill in in real time (Lin, Lachlan, & Spence, 2016, p. 627).…”