When Orville Pitts was elected Milwaukee alderman in 1968, his political future looked as bright as the one that had seemed in store for Pitts in the boxing ring a decade earlier. But unlike the knockout that ended his boxing career, his downfall in the political arena was self-inflicted and a drawn-out process featuring, in random order, booze, drugs, hookers, the devil and Richard M. Nixon. Pitts died Tuesday at 81, after a long illness.