This combination made from photos provided by the Pinal County Sheriff's office shows Nathan Lamb, 25, left, and his girlfriend, Elizabeth Kay, 25, both of Phoenix. An Arizona sheriff's office says it... more 
This combination made from photos provided by the Pinal County Sheriff's office shows Nathan Lamb, 25, left, and his girlfriend, Elizabeth Kay, 25, both of Phoenix. An Arizona sheriff's office says it will ask for murder charges against the couple after a man with heat exhaustion died after being found in a truck with other immigrants. Lamb was the driver of the truck, and Kay the passenger. (AP Photo/Pinal County Sheriff's Office) less 
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Associated Press | Photo By Pinal County Sheriff's Office
Wed, Jul 10, 2013 8:48 PM EDT