MSNBC Dateline October 21, 2019 05:20:00
Been accused of this before. and you think, okay, this guy is potentially very dangerous. he's out there on the street. >> reporter: then came a break. sam's atm card was being used. $400 withdrawn about 17 miles north of the crime scene. and security cameras captured the person who was waiting as the cash came out. it was the start of a whole new mystery. >> coming up -- >> we were pretty confident he was our guy. >> but sam's father was convinced he wasn't. and determined to prove it, he turns amateur detective. >> i said, okay, we've got movement here. let me see. ♪ we would walk on the s...