Are all these fiendish methods of execution performed by ISIS just a way of keeping themselves in the headlines? Or are they just really that sick?

http://www.dailymail.co.uk/news/article-3135913/Sickening-new-ISIS-video-shows-caged-prisoners-lowered-swimming-pool-drowned-shot-RPG-blown-explosive-filled-necklaces.html

- Sickening seven-minute video shows the deaths of several ISIS prisoners
- Five men are filmed being drowned in a pool in the ISIS stronghold Mosul
- Underwater cameras capture them thrashing before falling unconscious
- Another group are shot with a grenade launcher while locked in an old car
- Final sequence shows seven prisoners being chained together with explosive necklaces, which are then detonated