Danny Murphy San Jose State early 1960's Question


#1

http://www.ncaa.org/wps/wcm/connect/public/NCAA/Champion+Features/San+Jose+States+historic+feet#sthash.uMkHxP9I.dpbs

In conversation with LLer Orville Atkins he ask if I knew why Murphy did not compete in either of the 1964 Olympic trials. Poking about got me no answers and I had no idea. I must admit I am more familiar with the NCAAsprinters of that era than the distance folk.
Anyone know?
Anyone a better researcher?

Thanks
Tom & Orville