A nine-year-old boy, Arlo Schmidt, survived the massacre of his family while on a camping trip in Cedar Fall, Iowa. The lone survivor sought help from the mom of the suspected killer and described the killer as "clad in black."
Arlo Schmidt, 9, is the sole survivor of the horror incident, in Maquoketa Caves State Park in Maquoketa, Iowa, with his aunt saying that he has a lifetime of trauma ahead of him.
Investigators have come up with no motive for a 23-year-old Nebraska man suspected of fatally shooting three members of a family at an Iowa state park before killing…