It's too late to end radical Islam now. It's not a popular opinion but the only way to completely rid the chance of radical Islamic terrorist attack would to be to somehow delete all of the Islamic faith from Earth. As long as it exists there's going to be things like this happening. The only realistic approach to this poo now is that it's the world we live in and nothing is going to be able to change that.
I'm really disappointed in the Muslim community as a whole. Every single time something like this happens they're more concerned with covering their own asses with #NotAllMuslims than anything else. They need to be working to deradicalize people and end the train of thought that leads to suicide bombings and terrorism.