made for fun. >>> nearly two weeks after brooke wilberger disappeared while working outside of these ome. members of brooke's family expressed their gratitude. >> you've given up so much to help and i was thinking yesterday, brooke would be saying, they didn't even know me. >> while detectives were still looking at sung koo kim as a person of interest, one of brooke's siblings thought, no way. >> i personally didn't think he had anything to do with it. she could get away from him. he didn't look very threatening to me. >> and soon more reason surfaced to cast doubt on the idea that kim was involved in brooke's disappearance. >> he offers an alibi. >> well, offering an alibi and us being able to validate that alibi are two different things. >> but kim's alibi for the day of brooke's disappearance consisted of not just one but three-pieces of evidence. put together, they showed kim could not have been in corvallis at 10:30 a.m. when the kidnapping occurred. first, these records show an online purchase of 500 shares of stock with ameritrade executed on kim's computer 75 miles from the cr