he noticed morgan, the boss's wife, flirting with a 21-year-old employee named steve shappell. >> morganme and says, steve knows what kind of underwear i have on. steve is like, yeah, pink with black stripes. right off the bat. >> and when al had a question about an assignment -- >> i would call morgan and steve is there. steve is answering her phone. >> why was this kid who mowed lawns and was barely old enough to buy a beer suddenly acting like the new man in charge? kevin's sister, michelle, remembered him as a quiet, unassuming young guy who had done some work on her yard weeks earlier. >> this kid steve could not have been more polite to us. >> so what would kevin think now of his employee spending the workday at the pool with his wife and kids as michelle observed when she took a drive by. >> i drove by her development and she was sitting out at the pool with steve and the kids. >> okay. you see steve sitting with her and you're thinking what? >> i thought morgan was having another affair. >> it was no secret among those who knew the couple that morgan had strayed before. could kev