Doing the dance of joy!!!
Diagnosis - not cancer, diverticulitis. That is an infection in his colon. It is very low and so masked as bladder or prostate issues. So now, bland diet, mega antibiotics and a little bit of time and Ta - Da, he should be better.
Thank you so much for your information and support. I have been through the prostate cancer scenario with my dad. Apparently PC runs in his side of the family, every other generation (documented for several generations). My brother is not at as great a risk as my son is but both will have to keep an eye on things. Dad has his five year anniversary this summer and is still cancer free.
My warmest wishes for you all having a good outcome.