Aaron was a "recruited walk on" who earned a scholarship after his sophomore season at Bradley.
Jim Molinari didn't need too much convincing, as I recall. I remember Jim telling me Aaron was the best shooter in high school that he had ever seen.
Interestingly the walk-ons that have played, have tended to be point guards.
Charon,
Adam Carl (I think that was his name;late albeck era)
The point guard early in the JL regime, had spiked hair
This may not count as I believe he was recruited from Bradley's intramural league during his senior year.. Another old fan may have to help with this as it goes way back. I believe the name was Buford 'Booty' Heidenrich. I am unsure of the last name's spelling. This dates back to either the late 50's or the early 60's. I believe he was about 6'3" and may even have started some games.
Since this was over 50 year's ago, I might as well say I could be wrong
Roger Phegley.