it is death though... true they've not been tried by an Islamic court etc...
But that is the root issue - just that idea that it is acceptable for someone to be killed for insulting a prophet. It is an abhorrent idea yet is a mainstream Islamic view regardless of the condemnations if vigilante types chosing to carry out an attack in this particular manner
Yet it's not a mainstream Islamic view in Europe however, heck it's not even a mainstream Islamic law in muslim dominated countries in Europe (such as Turkey).
As I already pointed out the "kill the gays"* law recently passed in Christian dominated Uganda. It's not like we can really brandish all Christians anti gay and pro killing of gay people because countries on another continent predominantly follow a book/religion to the letter.
*luckily it was watered down before going through legislature and it is now a long time in prison...