. >> reporter: kay barber was like a mother to marie. hers, the second family to take marie in when she was 18 and struggling. >> marie's nickname that i gave her was rosie. she was always peachy, rosie and happy. >> reporter: like she was when she met jeff carlson. and he fell, hard. >> it was like, instant. and we spent the night talking. >> reporter: what are the chances of that? >> fate? the fickle finger of fate. >> reporter: you knew right away? >> yeah. >> reporter: so, they married and had a daughter named paris. and they thought their life together would be grand. marie got a college degree in criminal justice and became a deputy sheriff. >> her ultimate goal was to try to get into the fbi. >> reporter: then, for all the love between them, there were issues. jeff learned there were more secrets. as a girl, marie had been sexually assaulted. and sometimes her love and joy were chased into a darker place. >> she carried some baggage around. and when you're in love with somebody, you tend to overlook certain behaviors and low self-