Comment: Muslim jihadists organized to attack, bomb, kill and injure many innocent civilians in Manchester, England.

For decades, Muslim Islamic jihadists have been attacking, killing and injuring many innocent civilians in many countries around the world including in countries that aren't even fighting against Muslims in the Middle East.

So, why are Muslim followers of Islam attacking, killing and maiming innocent civilians in many countries around the world? What is influencing, inspiring and driving them? What is their goal? What are the Muslim extremists trying to accomplish?

Does it have something to with the religion of Islam, the hadiths and the verses in the Qur'an Muslims are obliged to follow?