The man collapsed after being arrested by Granite City police for driving with a suspended license and leading officers on a low-speed chase.
Pamela M. Crump was driving high school students to school last Friday morning when she developed chest pains.
Nance has been on life support for weeks
Flight 1274 left St. Louis around 3 p.m. Wednesday and was headed to Phoenix when the 71-year-old man fell ill.
Police say there is no indication of foul play.