NEW : ` ` I believe that we will solve these 2 tragic mysteries , '' Fronczak texts CNN . He declined to comment further . NEW : CNN has ` ` a thorough and complete investigation '' into 1964 Chicago kidnapping . ' Joseph ##son , now 49 , tells reporters he was n't the kidnapped Chicago baby . Fronczak wonders ` ` how old I am , or who I am , or what ? ''
NEW : ` ` I believe that we will solve these 2 tragic mysteries , '' Fronczak texts CNN . NEW : CNN has ` ` a thorough and complete investigation '' into 1964 Chicago kidnapping . ' Joseph ##son , now 49 , tells reporters he was n't the kidnapped Chicago baby . Fronczak wonders ` ` how old I am , or who I am , or what ? ''