 From the beginning the parents were the only suspects the prosecution investigators pursued.Cohen, as the Aisenbergs' attorney, appeared with the couple on "Larry King Live" in 2001 along with several other guests to discuss the still unsolved case.Cohen said the police have a right to investigate the parents of a missing child, but it was law enforcement's continued and relentless focus solely on the parents to the exclusion of other possibilities and leads that was problematic and abusive in this case.