Spreading of rumours is not a new thing. Its happening since life started on earth. So has happened in this very case. Bitcoin has many enemies which are always ready with their guns loaded waiting for the right moment for a headshot.
Journalist who spread this rumour must be against principle of bitcoins and thats why he took advantage of Paris attacks and gave a shot by spreading rumours at right moment. As informed by investigative community, its all fake. And bitcoins still remain in their proud position. And it's cleared that ISIS used Russian currency for their weapons. So, bitcoins have no involvation in this manner.