Reddit bans Navy Yard sleuthing Online community reddit has banned a site encouraging amateur investigators to find possible US Navy Yard shooters. ONLINE community Reddit has banned a site encouraging amateur investigators to search for possible US Navy Yard shooters, after people were falsely identified in previous crises. The shooting rampage in the heart of the US Navy complex in Washington left at least 12 people dead on Monday. One shooter was killed, but police were looking for one other possible gunman wearing a military-style uniform. As the hunt gathered speed, Reddit shut down a section for finding potential shooters, according to the Washington Post. "This subreddit has been banned," the so-called subreddit says. Reddit became a popular forum for internet investigators searching for the Boston Marathon bombers earlier this year, resulting in the some people being falsely identified as terrorists. The site later apologised for its role in enabling the posts. Federal law enforcement officials identified the first Washington shooter as Aaron Alexis, a 34-year-old Texas man believed to have a criminal record there and said he may have gotten into the Navy Yard by using someone else's identification card. The two officials spoke on condition of anonymity because they were not authorised to speak publicly. The shooting led to tightened security at the Capitol and White House nearby, including shutting down the Senate while a possible remaining shooter was sought. DC Police Chief Cathy Lanier announced the death toll and said people were being told to stay in their homes and out of the area. Lanier said there was no indication of a possible motive.