a large photo of the victim, her husband, and their two children. i comment to my supervisor, one of the children don't look like the other or the parents. that don't look quite right. >> and later, during ken fitsue's interrogation, ken referred to his son in an odd way. >> her oldest son graduates from college in a couple of weeks. she wanted to be there for that, too. it's really a sad time. >> you said her other son. is he not your son? >> no, he's our son. >> further investigation helped explain this slip. shortly after ken and christine were married in 1966, ken became friends with a co-worker named bob brown. they both worked at the san diego aerospace contractor back in the late 1960s.