thrill seeking trip chris was about to take to africa, they didn't think anything about it. a few days later, i went sand boarding. it was epic. headed to cape town. then came this email the day after christmas. i'm headed back up to the congo, it read. i'll be offline for a couple of weeks. but a couple of weeks turned into a couple of months. his family never got another message and eventually filed a missing persons report. >> the missing persons investigation revealed some inconsistencies and the possible crime scene was found. >> reporter: inside the office of chris smith's advertising and marketing firm, investigators say they found blood. dna confirmed it was his. he didn't die in the congo. smith likely died right here and the last person to see him was his business partner. >> he was just a person of interest at the beginning. >> reporter: investigators soon learned shin was having financial trouble. they say he was convicted of embezzlement and ordered to pay hundreds of thousands of