>>3753224Every time a school shooter goes on a rampage their family denies and makes excuses for the actions. It's the nature of human beings to hold on to the perceptions we have of those we know. You do it too. Everyone does.
Your idea of who your friends are, who your family members are or if you have kids, who they are as people will always lag behind reality and the longer you know someone the worse the distortion becomes.
Think of it like having a box with the name of your family member on it. You start filling up that box and one day becomes full. You leave the box open and from time to time something will fall out. You'll forget some aspect of their past and there will be room for something new to go into the box. You'll fill up that empty space then the box won't change again for months, maybe years.
They, as a person, are constantly changing but your perception of them doesn't keep up because the box in your mind is already full. You think you already know everything you need to know so you discard any new information and over time, they become a completely different person than the one you imagine them as.
