uses a figure 8 and then closes it with a single hitch or two. guess what knots are tied on both her legs and her hands. figure 8s, tied off with a single hitch or two. >> sheriff's investigators had questioned adam extensively after rebecca's death. >> you didn't hold anything back from investigators? >> nothing. >> you helped them to the extent you could? >> yeah. exhaustively. >> you thought you had nothing to hide? >> i knew i had nothing to hide. >> and when investigators determined there was no evidence placing adam at the scene? >> they cleared you. >> they did. >> did you think this was over at that point? >> yeah, i did. >> it wasn't over. rebecca's sister was determined to hold someone accountable. >> i'm guessing that somebody said to you that filing a lawsuit, a civil lawsuit to find answers in a criminal matter is generally an extremely unsatisfying way of pursuing justice.