I don't now any details of what happened. But, PTSD is a real thing and it can deeply effect people. Being assaulted by police and then having them charge you f

I don't now any details of what happened. But, PTSD is a real thing and it can deeply effect people. Being assaulted by police and then having them charge you for the crime of trying to protect yourself is an entirely plausible cause for PTSD. I know several activists who suffer from and have been treated for PTSD based on their past interactions with police, and some have been suicidal and needed immediate hospitalization. And, the suicide statistics of veterans suffering PTSD are horrifying. In short: Ian may have been suffering from PTSD. It may have struck very fast and very hard, so much so that his loved ones didn't have time to get him the help he needed to cope with his pain. The idea that it is not comprehensible comes from a place of privilege of never having experienced something so horrible that it caused significant damage to your mind and sense of well-being.