Hey man , i have answers for your questions , this is the typical un-educated question i get asked alot ... Yes there are Buddist that kill in the name of Budha heres a link https://en.wikipedia.org/wiki/Buddhism_and_violence
And yes there are Christians that kill in the name of jesus Africa has Anti-balaka they destroy mosques and kill muslims , another one is Tripura in india a terrorist group that go around killing anyone that opposes there religion. I could go on and on but you better do your research before asking such questions... I don't blame you for not hearing about those as Media is owned by goverments and political parties and all have agendas , so By them shedding the light on Isis they empower them give them a platform and make the stronger.Muslim communities that condemn terrorism ??? You would be surprised buddy ... Only 99 % of muslim countries condemn it, Come to Dubai ,Oman, Egypt , No one likes to see innocent people being killed muslim or not.
Man and the rest of the questions go back to my answer of AGENDAS of governments of ruining the image of islam read my other reply on this post and get a grip .