Jury selection has started in the trial of an Idaho man charged with involuntary manslaughter after his 11-year-old daughter hiked several miles in the freezing cold on Christmas Day and died.

Robert Aragon is also charged with felony injury to a child after his son, Bear, who was 12, suffered hypothermia.

He has pleaded not guilty.

Aragon was driving the children to see their mother when his car got stuck in a snowdrift last Christmas. He is accused of leaving Sage and Bear to walk the remaining 10 miles alone.

The boy survived. The girl's body was found the next day.

A prosecutor and defense attorney began work Monday to narrow a potential jury pool of more than 100 people.