Sergei W-ism

Did the Borussia Dortmund team bus bombing and left letters saying it was retaliation from Daesh for Germany killing Muslims. In reality, was a dual Russian German citizen.

en.wikipedia.org/wiki/Borussia_Dortmund_team_bus_bombing

rw-infopedia.pbworks.com/w/page/117407949/Sergei%20W