>> i realized he was this really, really great guy. i didn't want anybody else to have a chance to find that out. >> so in a small north dakota church, joan taft became mrs. david shannon. >> i thought he found somebody that was good for him. he was obviously happy. >> and she, what was your impression of her? >> she just seemed very nice, very sweet, very attentive to him, very much in love. >> they complemented each other, is what they did. >> it sounds almost as if you're talking about jonas if she was one of your children. >> she was almost like a daughter to me, yes. >> as for joan's two young daughters, daisy and elizabeth, david wanted them to be part of his new family. >> because he loved me, he loved them. >> and so he did. david shannon became both a