What insights can the length of a person’s shadow offer in uncovering the site of an extrajudicial killing? How might the configuration of a tree guide us to a missile launcher that downed a civilian airliner? From bystander videos of police violence in the U.S. to satellite images revealing potential mass graves in Sudan, there is an unprecedented amount of information available to anyone with an internet connection. This hands-on course will delve into the emerging field of online open source investigation, a new form of accountability and explanatory journalism and the latest method of news-gathering.