Someone is suddenly swept into a news event: a train crash, a natural disaster, a police shooting. Who is s/he? What’s their story? Find out what websites and other resources you should use to quickly unveil this person's past and present -- whether you have only 15 minutes, an hour, a day or the luxury of a week. Find undiscovered social-media accounts and court records, and learn new search-engine tricks, all on the cheap.