An Indiana man has been indicted on charges that he forced his young grandsons on brutal hikes in triple-digit temperatures at the Grand Canyon.
Federal prosecutors announced the six-count indictment Thursday against Christopher Carlson of Indianapolis. He's scheduled to be arraigned on the child abuse charges Wednesday in Phoenix.
Prosecutors allege that the 45-year-old Carlson deprived his three grandsons of food and water during two separate hikes in August. The boys told investigators they had been pushed, choked and pinched during the trips.
An attorney representing Carlson in federal magistrate court earlier this month questioned the children's statements, saying it was improbable they could have completed the hikes without food or water.
A conviction on each of the counts carries a maximum of life imprisonment, a $250,000 fine or both.