Moments Before A Killer Snaps

The moments before a killer snaps can appear deceptively ordinary. A final photograph captures a young woman's last smile before she is shot at a cliff edge. A man leaves his ex-wife with a conversation about their dog, then suffocates their three daughters. A nanny prepares a bath for two children, then attacks them with kitchen knives. The warning signs are sometimes there, but always only visible after the fact. A sudden rage, a "snap," or a pre-planned act of violence often looks like routine, until it isn't.