Pro Air & Detroit City Airport

[Lite]

Can anyone tell me please what the story was with Pro Air, and why exactly did they fail?

Also does anyone know why Southwest pulled out of DET and nobody has tried to start ops from there ever since?

[NotMe]

See this article (http://www.cnn.com/2000/TRAVEL/NEWS/09/19/proair.shutdown.ap/) for the reasons Pro Air ceased operations.