 Complete the following phrase:  In August 2016, French anti-terrorism investigators asserted that the two ISIS-directed terrorists who fatally cut the throat of a priest in Saint-Étienne-du-Rouvray in Normandy, France, and videoed the murder, had communicated via Telegram and used the app to coordinate their plans for the attack. ISISs media wing subsequently posted a video on Telegram, showing the pair pledging allegiance. A CNN news report stated that Telegram had become known as a preferred means of communication for the terror group ISIS and was used by the ISIS cell that plotted the 