A man who tried to kill his former girlfriend was sentenced to 21 years in prison on Monday.

Pima County Superior Court Judge Jane Eikleberry sentenced Arturo Quiles for attempted first-degree murder and two counts of aggravated assault.

Quiles, who represented himself at trial, gave a rambling allocution prior to sentencing. At times he seemed to express remorse for the shooting, while at others he claimed to have reasons for committing the crime.

Quiles had argued at trial the victim had betrayed him, which was why he sought to kill her. At Monday’s sentencing, he said seeing the victim during the trial reminded him of the supposed betrayal.

The Arizona Daily Star has not identified the victim, who has been left permanently disabled because of the multiple bullet wounds she suffered in the attack.

Despite claims of remorse, Eikleberry said she wasn’t convinced.

“I find your words absolutely chilling,” Eikleberry said.

Quiles was sentence to 21 years in prison for attempted murder and 15 years for each aggravate assault conviction. The sentences will be served concurrently.

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Contact reporter Patrick McNamara at 573-4241 or pmcnamara@tucson.com. On Twitter @pm929.