Sunil Tripathi, a young student of the prestigious Brown University in the United States, went missing a month ago. No one knows why. His family and friends even made a video for him to return. That video went viral on Friday after Tripathi’s name was dragged into the sordid affair of the Boston Marathon bombing as “Suspect No 2”.

How did he become Suspect No 2? It all started after some people on Reddit, the world’s most popular online sharing and discussion forum, spoke about the picture released by the US Federal Bureau of Investigation and how it looked similar to Tripathi’s image.