Mistrial again in second murder trial of former BP agent

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TUCSON - A mistrial has been declared in the second murder trial of former Border Patrol agent accused of shooting and killing an illegal immigrant.

The jury deliberated for about 13 hours over the course of three days, including four hours on Monday.

Corbett is charged with second-degree murder, manslaughter and negligent homicide for shooting and killing Francisco Dominguez-Rivera near Naco on Jan. 12, 2007.

Three witnesses, including Dominguez's two brothers, testified during the U.S. District Court trial that Dominguez was kneeling to surrender when Corbett shot without provocation.

Corbett's attorneys said he shot in self-defense as Dominguez tried to smash his head with a rock.

Corbett's first trial ended in March with a deadlocked jury.