Detailed text transcripts for TV channel - MSNBC - 20180520:09:45:00
>> reporter: and when aaron heard pam was dead? >> my first response was how did he do it? >> reporter: and then he told the cops about his mother. now you may have a serial killer on your hands, serial killer of spouses. >> yeah. >> something like that. >> that was the thought. >> reporter: two wives, one missing, the other dead. and the one thing they had in common was ralph candelario. but suspicion alone wasn't enough, wasn't proof. so the investigation continued. >> yes. >> reporter: in an effort to shake him or maybe even get a confession, they sought help from the one person whose prese...