wikipedia photo

45 year old Craig Ewing was flying from suburban Chicago to Hastings.  He was flying a Revo Light Sport Aircraft.  He went down near 111th and 68th street. 

Isaac Flemming heard and saw the accident.  He said the engine sputtered, then there was a loud noise, and he saw the planes wing fall out of the clouds.

Investigators will try to learn how the wing became detached from the rest of the aircraft.