so bugliosi turned to other family members, like barbara hoyt, who left the family when manson's behaviord her. >> i decided well, do i want to live with myself when i get old? and that was the deciding factor. >> barbara became a wary witness for the prosecution. she knew she'd take the stand in full view of her family family of manson followers. what was it like to testify? seeing them out there? >> they were really kissing up to me when i was in the back of the courtroom, blowing me kisses and smiling at me and all that. of course that changed when i started opening my mouth on the witness stand. >> day after day, members of the manson family demonstrated at the courthouse, performance art with a sinister gloss. >> the system wants destruction. that's what it's going to get. >> inside, charlie's co-defendants, leslie van houten, patricia krenwinkel and susan atkins played to the cameras. ♪ it was a circus of weird. manson in the center ring. >> are you guilty of plotting any murders? >> i killed a chicken once. >> a human being? >> no, no. >> you're absolutely incomes of any conspiracy