Twitter Presents: Demi Moore Credited With Taking Action to Prevent a Suicide Attempt

Usually we report on the frivolous things that happen on Twitter. But last night, actress Demi Moore used Twitter to spread the word about a troubling tweet she'd received -- the end result was that a woman who'd threatened to kill herself was located and taken into custody for evaluation. Police say that this particular use of the Twitter network is unprecedented. It's not, however, the first time that Twitter users have joined together to act as an early warning system or to break news.