News Flash

MCAO Latest News

Posted on: December 11, 2019

Duane Principale Sentenced to 20 Years for Manslaughter

PHOENIX—Duane Richard Principale (D.O.B. 10/20/1959) has been sentenced to 20 years in the Department of Corrections for killing three people in a head-on collision that was a result of his intoxication. He plead guilty to three counts of Manslaughter, which are Class 3 dangerous felonies.

“Three innocent people lost their lives because of the thoughtless actions of this individual,” said Maricopa County Attorney Allister Adel. “I’d like to urge everyone in our community to be mindful that when you decide to drive under the influence you are a danger to others, and the consequences are real.”

On October 2, 2017, Principale had visited two different bars and consumed various types of alcohol. He then made the decision to drive his vehicle. While driving, he drifted left of center while traveling 61mph in a 40-mph zone and hit a vehicle head-on, killing all three passengers inside. The defendant’s Blood Alcohol Content (BAC)—tested less than one hour after the crash—was .173. He had one prior DUI conviction from New York in 2012.

A defense expert claimed that the defendant potentially had an undiagnosed heart issue, that when combined with alcohol, caused him to pass out prior to the crash. However, the prosecution retained the Medical Director of Cardiovascular Quality at University of Arizona, who determined that the defense expert’s opinion was unrealistic.

Facebook Twitter Email

Other News in MCAO Latest News

Female domestic violence victim packing suitcase with clothing

Make a Safety Plan to Get Out

Posted on: October 19, 2020
Teen Girl Texting

Remind Teens to Think Before They Send

Posted on: September 28, 2020
County Attorney Allister Adel

Body-Worn Camera Request

Posted on: September 23, 2020
Online Bully

Online Bullying During COVID

Posted on: September 21, 2020
Animal Cruelty

Report Animal Abuse to Law Enforcement

Posted on: September 14, 2020
Labor Day DUI Reminder

Celebrate Labor Day Weekend Safely

Posted on: September 3, 2020
Pills on table

International Overdose Awareness Day

Posted on: August 31, 2020

COVID-19 Contact Tracing Scams

Posted on: July 23, 2020
Two Girls on Laptops

What are the risks of livestreaming?

Posted on: July 13, 2020

What is a Prosecutor?

Posted on: June 25, 2020
Man Vaping

Vaping Warning Signs for Parents

Posted on: June 18, 2020

Help Prevent Opioid Abuse at Home

Posted on: June 16, 2020
Sunset Over Canal and Homes

Keep Your Home Safe this Summer

Posted on: June 4, 2020
Looking through a car windshield at night. The lights are blurred.

Don’t Graduate into a DUI

Posted on: May 19, 2020
Happy Mothers Day

Honoring MCAO Moms

Posted on: May 8, 2020
COVID-19 Stimulus Check Scams

Stimulus Check Scams

Posted on: May 7, 2020
National Law Day 2020

It’s National Law Day

Posted on: May 1, 2020
Angela Andrews

Collaboration is Key

Posted on: April 30, 2020
Inspiration in the Face of Adversity

Inspiration in the Face of Adversity

Posted on: April 24, 2020
Heather Kirka

Charging Ahead and Working Together

Posted on: April 23, 2020
Census form on flag

We All Benefit When We Respond

Posted on: April 16, 2020
Brittany Hogard

Keeping the Wheels of Justice Rolling

Posted on: April 15, 2020
Person typing on computer keyboard

Be a Smart Online User

Posted on: April 13, 2020
Avoid Coronavirus Scams

COVID-19 Scam Awareness

Posted on: March 30, 2020

Community Outreach Highlights

Posted on: March 1, 2020
Allister with Female Staff

Celebrating Women’s History Month

Posted on: March 1, 2020
2020 Census Advertisement - Shape your Future, Start Here

YOU Count: Fill Out the Census Today

Posted on: March 1, 2020

Update On Petersen Investigation

Posted on: December 11, 2019

MCAO Honors Our Veterans

Posted on: November 8, 2019

Dion Earl Found Guilty on All Charges

Posted on: August 22, 2019

MCAO Launches Community Grants Webpage

Posted on: August 12, 2016

Update on Green Acre Dog Boarding Deaths

Posted on: September 22, 2014

National Geographic - Taboo

Posted on: August 31, 2012