Dao has a past of felony charges. He prescribed drugs to a patient in exchange for sexual relations and spent years trying to reclaim his
suspended medical license. Despite his distraught past, there was no evidence the airlines knew any of his background information - thus, his past did not contribute to the way he was handled on the aircraft, the (https://www.apnews.com/092b2c60f17643fe8990b49536cc7dc7/United-pledges-to-review-policies-on-removal-of-passengers) Associated Press reported Wednesday.
The scandal came to light in late November 2004, when Bach McComb, a 47-year-old Florida osteopath with a
suspended medical license, injected himself and three others with improperly diluted amounts of raw toxin obtained directly from List Biological Laboratories, a Northern California research laboratory.