Getting PTSD from war... Or getting PTSD from seeing someone being beheaded... Or getting PTSD from any number of reasons is no less or worse than each other, it's still PTSD... And it's still something that can have far reaching effects for an individual and those around them.
I have more sympathy from someone getting it from real life event than someone watching or looking at something disturbing.
Had a friend for almost 19 years and finally had to ditch him. He started getting panic attack three years ago supposedly because he would look at disturbing cases while working at the DA office. He eventually had to quit his job and move back with his parents. He is going on year 3 just drinking everyday and hasn't worked at all the entire time. I tried to hang out with him (usually just drinking) and cheer him up to get motivated to being a normal adult again. Now when he is approaching pretty much 3 years and will prob go on 4 I had to just ditch him. He wasn't getting better and at end started talking shit to me because I was calling out his shit situation. You can only give a person so much time before you deem them worthless. He has 5 self help books though which he is supposedly reading! He really just needs to go to rehab. Those self help books obviously don't help shit.