Calvin Murphy, a 55 year old Hall of Fame guard for the Rockets from 1970 to 1983, surrendered to authorities in Houston on March 31 after being charged with sexually assaulting his daughters more than a decade ago. With tears streaming down his face after appearing in a courtroom yesterday, Murphy declared he is innocent of the charges. He has been charged with three counts of aggravated sexual assault and three counts of indecency. The charges involve five daughters who were under 17. Murphy allegedly sexually abused them between 1988-91.