Jerod MacDonald-Evoy

The Republic | azcentral.com

The Maricopa Police Department, with the help of the U.S. Marshals Service, arrested a woman suspected in the shooting death of a Maricopa man Dec. 16, officials said Thursday.

Kathryn Sinkevitch, 32, of Tempe was arrested Wednesday on suspicion of first-degree murder in the death of Michael Agerter, according to Ricardo Alvarado, a Maricopa police spokesman.

Agerter's body was found in the garage of a home in the 43700 block of West Sage Brush Trail, Alvarado said. Witnesses told police they saw a woman driving away from the home in a white car.

Early investigative efforts indicate a "domestic violence relationship" between Agerter and Sinkevich, Alvarado said.

Police discovered surveillance footage that appeared to show Sinkevitch fleeing the scene. She was located and arrested in Avondale at about 10:30 p.m. Wednesday.

Although police have a suspect in custody, Alvarado said investigators are asking anyone with information to call the Maricopa Police Department at 520-568-3673.