Anti-Islam activist Michael Stürzenberger has been injured Friday in a knife attack in the German city of Mannheim that has left several others wounded.Anti-Islam activist Michael Stürzenberger has been injured Friday in a knife attack in the German city of Mannheim that has left several others wounded.Read More6f4bf364-e53e-57c3-b106-f7e10d266d9a, fox-news/world/world-regions/germany, fox-news/world/world-regions/europe, fox-news/world/crime, fox-news/world, fnc, fox-news/world, article, Fox News, Greg NormanFOX News : World