We have to think about it, can you make me a list of people who are terrorist but not Muslim and not following Islam. And In the same way can you make a list of terrorist who are muslim and following Islam.
Make it asap and the rest of world is able to understand that Islam has no relation to terrorism.
I'm waiting for your reply.
I am no expert in terrorist study but a widely accepted list, that is followed over by american and European countries for sanction and other purpose is the FTOs by bureau of counter terrorism of USA, which consist more than 2/3rd of Islamic groups.
https://www.state.gov/j/ct/rls/other/des/123085.htmEven the most talked about terrorist individual ever was Osama Bin Laden without any doubt.
This article also summarizes list by individual countries and UN's 1267 regime list
Still more than 2/3rd are islamic groups.
https://en.wikipedia.org/wiki/List_of_designated_terrorist_groups