FBI agent John Robertson found the messages that led to the Hillary Clinton email investigation being reopened days before the 2016 election
He said the way the bureau handled the case was 'not ethically or morally right'
Robertson feared he would be made a 'scapegoat' when he found the emails in the wake of DailyMail.com's revelation that Anthony Weiner was sexting a minor
The disgraced congressman's wife Huma Abedin was Clinton's top aide
Robertson said the FBI did nothing for a month until he went outside the chain of command and spoke with the US Attorney's office overseeing the case
The only advice from his bosses was to erase his office computer, which meant leaving no record of his investigations, a new book says
Robertson's claims add another layer of intrigue to the investigation of Clinton's emails which has become one of the most divisive episodes of the 2016 election