Insanity defense tested in cases of child death

Jon Jonchuck is accused of the unthinkable - throwing his daughter off a Bay Area bridge in 2015. In a shockingly-similar situation, Tampa police say Shakayla Denson dragged her crying daughter into the Hillsborough River last month and let her drown. The insanity defense did not work for double murderer Julie Schenecker. The public’s first images of Schenecker showed her shaking uncontrollably as she was escorted out of the police station.