>> he told me everything would be okay. and that we were gonna have to -- to fight some things. >> reporter: christine was a wreck. her husband was in jail and she was dumbfounded as to why the police had taken the boys out of school and then interviewed them without parental permission. she felt better about this though -- the two oldest boys backed their dad's story they had seen their mom cory alive valentine's day morning, just like curtis said. >> they saw their mother alive that day. the -- >> and that's -- that's the gist of their story. yes, i saw her alive that morning -- >> yes. >> when dad took us to school. >> uh-huh. >> so there -- >> it was valentine's day. >> so therefore she couldn't have been dead upstairs and -- >> right. >> dying and rigor mortis setting in. >> right. >> because we saw her alive. >> uh-huh yes. >> reporter: the boys' sister lyndsay, had also told police two separate times her mom was alive that morning, had seen her off to school on valentine's day. >> she was standing in the front hall like marching us out the door like she always did. >> reporter: on the day of her father's arrest, lyndsay was