Posted: Sep 18, 2012 2:09 PM PDT Updated: Sep 18, 2012 2:16 PM PDT
By Phil Benson
CBS5



Saul Martinez

STANFIELD, AZ (CBS5) -

An undocumented immigrant deported from the U.S. three times has been arrested in Arizona after pointing a stolen handgun at an elementary school security guard, sheriff's officials said.

Saul Martinez, 23, is accused of confronting the guard at Stanfield Elementary School on Saturday and pulling out a .40-caliber handgun after the guard asked him what he was going on school property, the Pinal County Sheriff's Office said.

Martinez told the guard to "back off" while pointing the gun at him, PCSO said.

The guard went to his truck and called 911 as Martinez walked to a mobile home and changed shirts, deputies said. The guard then drove to a nearby Circle K convenience store while Martinez followed him on foot, according to PCSO.

Deputies said Martinez confronted the guard again while he was seated in his truck at the Circle K parking lot. The guard told Martinez he simply wanted to know who he was because there had been recent break-ins and thefts at the school, investigators said.

When deputies arrived, they found Martinez sitting between a trash can and a gas pump. Deputies located two .40-caliber bullets in Martinez's pockets, but no gun, PCSO said. After sweeping the area again, a deputy found the handgun hidden behind a RedBox movie rental machine, PCSO said.

Martinez eventually admitted to having the gun, but denied pointing it at the guard, the sheriff's office said. A check of the gun's serial number revealed it was stolen in Casa Grande.

Deputies said they discovered Martinez had been deported by the Border Patrol on Feb. 18, 2009, Dec. 6, 2009 and July 12, 2011.

Martinez was booked into jail on a number of charges, including possessing a firearm on school grounds.

Arrested again: Undocumented immigrant deported 3 times - CBS 5 - KPHO