It's not that we don't believe it, it's that our brains are wired to focus on perceived threats and can't differentiate between hearing about a threat from a fr

It's not that we don't believe it, it's that our brains are wired to focus on perceived threats and can't differentiate between hearing about a threat from a friend (with small, local distribution) and hearing about it from the news (with very wide distribution.) So we mentally approach crime news stores that are actually one in a million events (in a large city) like they happened to someone in the 150 or so people we know and communicate with regularly (our "tribe".)