Ohio State has acknowledged its "fundamental failure" to prevent abuse by Richard Strauss, apologized publicly to the survivors.
The 33-year-old chef uncharacteristically missed work Monday. Cipriani Dolci released a statement Thursday saying Zamperoni "has been found deceased."
He and his brother, Charles Koch, helped to build a massive conservative network of donors to support libertarian-leaning economic policies.
SkyWest Airlines said the family did not notify the airline in advance that it would be traveling with a passenger with autism.
Barquín Arozamena, 22, studied civil engineering at Iowa State and was the Big 12 Conference player of the year in 2018.