>> hello i'm welcome to dateline. it was a young entrepreneur who wanted to change the world but someone wanted him dead. first no one knew what to make of this case but a jury made it clear. this was a crime of passion, a fader triangle involving a husband, wife, and the plus. here's dennis murphy. >> rob daylight, morning in a busy parking lot then pop pop pop,. >> several shots fired. >> amanda downed at close range -- a silver mini van screech from the law. witnesses saw the victim slaughtered on the ground. >> right now his condition is unknown. >> parents and teachers recognize the man who had been shot as a dad who had just dropped off his two-year-old son. a preschool, of all places, had