The Pinal County Sheriff's Office announced its decision Monday after two nationally known forensic pathologists raised questions about a wound the deputy suffered.
The pathologists, Dr. Michael Baden of
The sheriff's office soon after released a statement saying it stood behind the official investigation, and that physical evidence supports the deputy's account.
But the office reopened the case Monday, saying it wants to maintain transparency.
Office spokesman Tim Gaffney said the shirt Puroll was wearing the day of the shooting is being sent to the state Department of Public Safety for testing. The department will check for gunshot residue, charring, burning or any other evidence that it was a close-range shot.
"If in fact a rifle was fired at Deputy Puroll within a couple of inches as Dr. Baden and Dr. Spitz have concluded, burn marks and residue will be present on the shirt," Gaffney said.
The sheriff's office said Friday there were no burn marks on Puroll's shirt and that his wound had no stippling, which is caused from burnt gunpowder coming from the barrel of a gun fired at close range.
The sheriff's office said Monday it consulted with Dr. Phil Keen, former chief medical examiner for
Puroll's shooting fueled an already blazing debate in
The shooting immediately raised questions about a deputy supposedly looking for armed drug smugglers in the remote desert without backup. A dragnet involving more than 100 officers in the rugged mountainous area about 50 miles south of
The area is a well-known smuggling corridor for drugs and illegal immigrants headed from