gill; he just kept on doing autopsies for the forensic medical group. the case of dr. gill is not unique. a nationwide investigation by frontline, propublica and n.p.r. found there is no federal oversight of death investigators or the offices where they work. we found that, in massachusetts, they've repeatedly lost body parts. in michigan, they discovered the body of a prominent banker and missed the bullet hole in his neck. in nebraska, murderers went free because of incompetent death investigations, while in mississippi, botched autopsies helped send innocent people to prison for life. >> the difference between competent death investigation and incompetent death investigation may be the difference between what side of a state border you're on. there may be areas where, on one side of the border, you have a statewide medical examiner and competent death investigation; the other side of the border may be a small county coroner with few resources and little training in death investigation. >> bergman: in more than 1,300 counties across the country, elected politicians c