sheriff stanley glanz told a press conference on monday that the fbi investigation had cleared his department over the april 2 death .
robert bates , a 73-year-old reserve deputy , continues to face second-degree manslaughter charges over the death of eric harris .
the two full-time deputies seen in the videotape of the incident have been reassigned for their own safety .
sheriff glanz said he does n't believe reports that bates ' training records were falsified and that he has in intention of resigning over the incident .