investigators don't know what caused the crash on the expressway. more news later. now, back to the disappearance at the dairy queen. it wasn't until a few years after he'd been ordered to solve the cindy case that detective derek mclaughlin, mac, actually sat down with the missing girl's father. ed zarzycki by then had remarried a woman named linda. she would become the family's principal contact with the police, because she knew it wasn't in ed's quiet nature to even talk much anymore about cindy. >> when her birthday came or the anniversary of her death came or christmas came -- i could feel his pain. she became my child, as well.