# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-12-22 20:42:36 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/282586959791140864) RT @qikipedia: According to the FBI, on any given day in the US, up to 300 serial killers are active. (@JamesPurefoy on ‘Loose Ends’ BBC R4)