would be like for him. >> he thought that if we got to know the ins and outs that maybe it would be easier for him once he was on the inside. >> reporter: he worried about how he'd hear his favorite music, for example. >> he was trying to find out if maybe there was a radio station he could buy so that if he were in jail he could have music that he liked. >> reporter: bob knew his chances of acquittal depended in large part on winning the jury's sympathy. so for that he went on a crash diet. >> bob was trying to use every way within his power to look frail when he was on trial in galveston. >> reporter: he also went to considerable trouble to practice his testimony as presiding judge susan criss learned later from recordings taped in the jail. >> he had his wife and friend smuggle a little cassette tape recorder into the jail. he would practice his testimony, sneak the tapes back to them, and then discuss with them