this time conrad truman got the verdict he wanted. uilty. >> i just kept saying did they say not? >> he grabbed my arm. are you sure? >> reporter: in the courtroom, conrad's family shared tears of joy. >> i was giggling and crying at the same time. it was weird. >> reporter: on the other side of the courtroom aisle were tears of a different kind. >> i felt my heart sink and i just was in shock. >> reporter: you fainted? >> i did. i couldn't believe there was a situation where that long shot happened, where he would be freed. >> reporter: juror brian christenson said he and his fellow jurors had no choice but to set conrad free. >> i believe that we all pretty much felt that he probably did it. >> reporter: but you voted to acquit. >> we voted to acquit. >> reporter: because you had reasonable doubt? >> we had reasonable doubt. >> reporter: whether you believe mr. truman is innocent or not, those measurements either put an innocent man in prison or let a guilty man go free. >> well, so you're right. but my opinion hasn't changed. do i t

peace with a simple truth -- the very thing that freed him, reasonable doubt, could also shadow conrad truman for the rest of his life. >>> that's all for this edition of "dateline." thankin thankings for watching. >>> i'm craig melvin. >> i'm natalie moraalemorales. >> and this is "dateline". >> he said you need to get in the car with us. tied my legs, duct taped my arms. it's terrifying. >> she thought he was mr. right, confident, hand some surgeon until the good doctor seemed to turn sinister. >> he had put his hand over my face and said go ahead and try and leave. i didn't know where else to go. >> she just broke down. >> then something deadly. >> they said he had hired somebody to get rid of me. >> a doctor plotting a murder. >> he's giving you a way to kill someone. >> very detailed precise instructions. >> investigators would launch a plot of their own and unravel not one murder scheme but two. so now you have a man and a woman who both want their exes dead. is that bizarre? >> it's shocking. >> it just is unreal. i couldn't believe this was happening. >> these detectives had a plan an