It was an open-and-shut case, the FBI said.
But three months after agents pinned the post-9/11 anthrax mailings on Army scientist Bruce Ivins - who committed suicide as the FBI closed in on him - his former colleagues have approached a lawyer to sue the feds for fingering the wrong man, The Post has learned.
They argue that the FBI abused its power and violated its own policies as they probed an innocent man for six months.