Phoebe: You loved her and you blame yourself.
Sam: Do you blame me? Everyday I wake up and for just a second, just a second I think maybe it didn't happen. Yes I blame myself.
Prue: We have to see past our emotions to deal with this, Sam. So do you.
Sam: Even so, it doesn't change the fact that I didn't see it happen. I tried to warn her and she froze me.
Piper: Because she was trying to protect him.
Sam: Protecting was supposed to be my job. I couldn't help her, I don't know how I can help you, I didn't see what happened.