Religion of peace

This photo accompanied a story in the Al Quds newspaper of London. It is apparently a picture of Shehada Jawhar, one of the leaders of Jund al-Sham Islamic group in Lebanon, who was killed this morning in continuing clashes in Lebanese "refugee" camps.

Do people who call Islam the "religion of peace" cringe when they see Islamist leaders explicitly equating weapons with the Koran, or do they perhaps have a different definition of "peace" than the rest of the world?