Office Leadership

Photo of Denver DA Beth McCannElizabeth (Beth) McCann was sworn in as Denver’s District Attorney on January 10, 2017. She is the first woman to hold the position and is now serving her second third term in office. Prior to becoming district attorney, she was a four-term state representative for Colorado House District 8 and served almost eight years as a prosecutor under Denver District Attorneys Dale Tooley and Norm Early. DA McCann was a founding member and former president of the Colorado Women’s Bar Association, served as first Vice-President of the Denver Bar Association and was on the Board of Governors of the Colorado Bar Association. She also served on the Colorado Supreme Court/Court of Appeals Nominating Commission and was a member of the Colorado Commission on Criminal and Juvenile Justice. She currently serves on the board of the Caring for Denver Foundation. DA McCann graduated magna cum laude from Wittenberg University in Ohio with a B.A. in American Studies and earned her law degree from Georgetown University Law School.

Marguerite (Maggie) Conboy was appointed one of the two assistant district attorneys in 2021. She has spent a significant part of her career working with victims of crime, specifically victims of domestic violence and sexual assault. From 2012-2016, she was the chief deputy district attorney supervising the office’s Family Violence Unit, which handles prosecutions of all felony domestic violence and crimes against children. From 2009-2012, she served as the senior sexual assault specialist to improve the investigation and prosecution of sexual assaults in Denver. She currently serves on the board of the Rose Andom Center. ADA Conboy earned her law degree from DePaul College of Law. 

Zach McCabe was appointed one of the two assistant district attorneys in the Denver District Attorney’s Office in 2020. Since joining the office in 2005, he has also served in the Family Violence, Cold Case, Organized Crime, and Economic Crime Units. He has tried murder, manslaughter, sexual assault, cold case, child sexual abuse, domestic violence, illegal firearm, gang-motivated shooting, and drug distribution cases. ADA McCabe earned his law degree from the University of Denver. 

Liza C. Willis serves as the chief of staff for the office. In 1988, she joined the office as a victim advocate and rose through positions of increasing importance under several elected district attorneys. Prior to being named chief of staff, she served as senior chief deputy district attorney/legal administrator, chief of District Court, and deputy district attorney with the office’s Appellate, District and Juvenile Units and Drug Court. While working full-time, she earned her J.D. and law degree from the University of Denver Sturm College of Law. 

Robert M. Russel is chief deputy of the Denver DA’s Appellate Division. Prior to joining the DA’s Office, Mr. Russel was a judge on the Colorado Court of Appeals. He has served on committees that advise the Colorado Supreme Court on the Rules of Evidence, Rules of Criminal Procedure, Rules of Appellate Procedure, and Criminal Jury Instructions. He also headed the Appellate Divisions of both the United States Attorney’s Office and the Colorado Attorney General’s Office. He was a Supreme Court Fellow with the National Association of Attorneys General. Mr. Russel is a graduate of the University of Colorado Law School.

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Denver District Attorney
370 17th Street
Suite 5300
Denver, Colorado 80202

Main phone number: 720-913-9000
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