Ah, i used to watch this kinda shit in my late teen years (curiosity and such).
Just recently, like a week ago, went on one of those weird internet serf-trips and ended up on a gore website (don't remember the name), mostly watched things that are going on in the Middle-East, especially Syria, right now. After watching that i can positively say that there is some PURE evil out there in this world that just needs to be exterminated asap. I mean, the beheadings are just a regular everyday kinda thing that these people do, even the child soldiers.
There are videos (filmed with GoPro or something similar, so it's HD-quality) of ISIS (and similar terrorist groups) executing prisoners in the most diabolical ways a human mind can come up with, like burning people alive trapped inside a car, or locking several of prisoners inside a large cage and then lowering the cage into a pool, drowning them to death etc. There's no turning point for these people, then need to be put down.