Complex sentence: Biographers state that Ray--who began to experiment with men during his stint at the University of Chicago--was bisexual; he himself denied this in 1977, but stated that everyone has occasional fantasies or daydreams about same-sex relations.
Split into simpler sentences: Biographers state that Ray--who began to experiment with men during his stint at the University of Chicago--was bisexual. He denied this in 1977, but stated that everyone has occasional fantasies or daydreams about same-sex relations.