i've nothing to hide. >> linda watson's friend saw the news on tv. >> we arrested david dwayne watsone. i said, oh my gosh, this is it. i started trying to call her aunt, patty. she said, this is it. i was like, are you sure? we sure? i just remember screaming and crying. she said, they just arrested him. >> i--. but i just can't believe it. >> this was 15 years. >> 15 years just--canvassing >> yeah. i just could not. i still had to pinch myself. >> dave's daughter jordan couldn't believe this day had come either. but for very different reason. she believes supported her father, believed there was no one knows where he killed three women. >> while they really had was, you know, that he wasn't [inaudible] and it seemed like a business custody battle. >> when it came to a climax, someone died? >> yes. that's all they had. there was no hard evidence putting him somewhere, you know? no murder weapon in his hand. nothing like that. they never found anything. his dna isn't anywhere they wear. >> remember, dave had a solid alibi. his wife at the time, rosemary, told detectives she was with h

. ♪ ♪ manson sends out three women, patricia krenwinkel, susan atkins, and linda kasabian with tex watsonveryone in a gory scene. he wanted a blood bath. kay: and manson told the women, "do whatever tex tells you to do." do you know why they picked sharon tate? -no. -was that purely bad luck? i know now that it had something to do with terry melcher. kay: manson knew that terry melcher and candice bergen didn't live there anymore, but he wanted to send a message to them. "there but for the grace of god go you." ♪ [ insects chirping ] [ dog barks in distance ] ♪ sidner: at 10050 cielo drive, sharon tate and her friends, jay sebring, abigail folger, and wojciech frykowski, are settled in for the night. ♪ 25 yards away from the main house, in the separate guesthouse, the fill-in caretaker, william garretson, has decided to stay in. but late that night, garretson gets a surprise visitor. ♪ steven parent, the night before, had met the caretaker, william garretson, and garretson invited him to come up. ♪ meanwhile, the car with tex watson and the other manson followers pulls up near the gate of