His postgraduate research focused on aerospace medicine, and he received his training in this field from Wilford Hall Medical Center.
[8] Bradstreet published autism research, which he claimed indicated vaccines as a cause, in the fringe partisan Journal of American Physicians and Surgeons, which is not indexed by PubMed.
[11] Bradstreet treated Colten Benevento a child diagnosed with autism (one of the test cases in the autism omnibus trial) with chelation therapy on the premise of removing mercury from his body, in spite of the fact that hair, blood, and urine tests had failed to show he exhibited abnormal levels of mercury.
"[14] Bradstreet also published research regarding the use of hyperbaric oxygen therapy for autism,[15] some of which concluded it was ineffective,[16] as well as a paper arguing that autistic children have an increased vulnerability to oxidative stress.
[19] Bradstreet was found dead from a gunshot wound to the chest in the Broad River in Rutherford County, North Carolina in June 2015, after his Buford, Georgia medical office was raided by the FDA in connection with an investigation into GcMAF treatments.