A headline @Breitbart's catches your eye. It can be related to many things.
#ThinkingAboutThinking as you try to make sense of it; link it to already existing meems. When you get a link you also get a little reward; a pleasant brain-chemical-cocktail.
SV represents a very real existential danger. He did kill someone. He was a repeat offender. He is an illegal immigrant. You might link SV to ‘Immigrants are a high risk’ because it ‘natural’ to assign the actions of one to the traits of the group. That links to its own set of meems. Some may steer you toward action.
Of course you might have linked SV to ‘the legal system failed’. That links to a whole other set of meems. Some may steer you toward action.
Or both at once. Perhaps in denial of one. Perhaps considering both with a mind free to consider.