One of the attackers did say that there are many verses in the Koran that enjoin followers of Mohammad to go out and kill non-believers.
Somebloke he did not say that these verses were the reason why he was doing it though did he. The reason he stated for why he was committing his horrific crime was because of UK foreign policy in particular troops in Afghanistan. As for 'many verses', why don't you read the Quran yourself to see exactly what it contains rather than relying on the rantings of extremist loons in both the EDL and the Muslim Radical groups.
There are many texts and scriptures that can be misinterpreted and misquoted to prove a vile point. For example....
^"When you march up to attack a city, make its people an offer of peace. If they accept and open their gates, all the people in it shall be subject to forced labor and shall work for you. If they refuse to make peace and they engage you in battle, lay siege to that city. When the LORD your God delivers it into your hand, put to the sword all the men in it. As for the women, the children, the livestock and everything else in the city, you may take these as plunder for yourselves. And you may use the plunder the LORD your God gives you from your enemies. This is how you are to treat all the cities that are at a distance from you and do not belong to the nations nearby.
However, in the cities of the nations the LORD your God is giving you as an inheritance, do not leave alive anything that breathes. Completely destroy themthe Hittites, Amorites, Canaanites, Perizzites, Hivites and Jebusitesas the LORD your God has commanded you. Otherwise, they will teach you to follow all the detestable things they do in worshiping their gods, and you will sin against the LORD your God."
Holy Bible: Deuteronomy 20:10-18^
If I only read those particular verses of the bible what sort of impression do you think I would have of Christianity. Certainly not a pleasant one. Yet you are perfectly happy to do the same thing to Muslim Scriptures.
I would say the problem is not the text its the reader. I read that verse you quoted from the Quran and I immediately put it in to the context in which it was revealed which was in response to a long, bitter conflict between the Muslims living at that time and the non-Muslim community there who persecuted them. I don't apply these verses to my neighbours, my work colleagues and friends etc. That is the stance of the majority of Muslims in the world. If it wasn't there would be a lot more bloodshed then we see today. However for a small, dangerous, fringe minority of people they interpret that verse to apply not only to non-muslims who they consider themselves in conflict with today but also to muslims who disagree with them. After all the majority of victims of these Radical Muslim groups are in fact other Muslims. Find me one verse in the Quran that legitimises and incites Muslims to kill other Muslims. It doesn't exist. These people are not motivated by the Quran. They have a political agenda and they twist religious texts to legitimise the wrong things that they do whether it is killing innocent non-Muslims or slaughtering Muslims who oppose their views. In the same way that the far-right in America twist the constitution to oppose any government trying to control the spread of guns. Or the way the fundamentalist Christian right in America use the bible to justify supporting wars in the Middle East to speed up the arrival of 'the Rapture'.