. >> they both worked at the san diego aerospace contractor back in the late 1960s. >> ended up, thehree of them hanging out together all the time. >> as a result, bob brown's relationship with christine soon went beyond friendship. >> he's having an affair with christine. as bob put it, he thought that christine was starved for affection. so christine and bob have this affair that went on for many years. >> when christine got pregnant and gave birth to her oldest son, justin, sources told police that ken was not the boy's biological father. it was bob brown. >> robert maintained his friendship. as a matter of fact, he was justin's godfather. >> to confirm justin's paternity, investigators tracked down robert brown. >> we end up finding robert brown. and he says, yes, i am the father of her oldest son. we get dna testing done and confirm that he is the father of the oldest boy. >> but as justin got older and was about to go out on his own, christine decided it was time to tell him the truth. >> justin was about to graduate and christine wanted to invite his biological father to the g