You probably wasnt in Islam anyway and if you was it was the attacks that made you leave Islam as u say this so nochantly it looks to me like you were kinda out anyway. Leaving a religion is a big thing, certainly not one you create AMA about immediately after. And the guy did it because he was gay himself mostly not because of Islam- links with Isis are not clear.
BTW dont reply to me- Im busy to reply to any comments.