it is however still a challenge, and when the case went to trial, keith greer would be against a topid you feel overmatched? >> i was so out gunned it was pathetic. >> two families connected by tragedy prepare to go head to head in a courtroom. coming up. >> did you attack her? >> no. >> did you sexually assault her? >> no. did you tie those knots on her body? >> no. >> would a jury believe him? >> i sat down next to him and said mary i'm sorry, this is probably not good news. >> when the mansion on ocean boulevard continues. boulevard continues. ♪ ♪ ♪ the plaintiffs attorney got a good imagination. >> adam shacknai says it's simple. he had nothing to do with the death of rebecca zahau. were you present when rebecca died? >> no. >> did you attack her? >> no. >> did you sexually assault her? >> no. >> did you tie those not on your body? >> no. >> are those a types of knots that only a sailor would know? >> no. those are common knots. >> sheriff's investigators found no evidence adam was present when rebecca died. and they cleared him. that didn't stop rebecca's family from suing in ci