. >> just a year earlier, melvin had an affair with a married woman, teresa harshman, who he knew from square dancing. melvin and teresa left their jobs and families behind and fled to montana. >> hey, everybody swing! >> melvin's wife, joanne, and teresa's husband, ron, took the opportunity to get better acquainted, too. >> mr. harshman and mrs. snyder struck up a relationship and were intimate with one another. >> but after only three weeks, melvin and teresa decided they had made a mistake and moved back home. >> gentlemen, change partners across from where you are. change partners and swing her. >> however, in this recent disappearance, neither teresa harshman nor her husband, ron, knew of melvin's whereabouts. and the bank reported no activity on any of melvin's credit cards. >> he had a young son, he was early 20s, and this wasn't the kind of man that would run off and leave family obligations. >> which is why investigators began to suspect foul play. just stay calm and move asno sudden movements.. google search: bodega beach house. for over 19 million people. [ mom ] with life i