Florence – A Maricopa woman, Kathryn Sinkevitch, was convicted by a jury of first-degree premeditated murder of Michael Agerter this week. Sinkevitch will be sentenced to natural life in prison on June 6, 2019, in Superior Court.
According to the Pinal County Attorney’s office, City of Maricopa Police Department received multiple 911 calls of shots fired on December 16, 2016. When police arrived on scene they discovered the 31-year-old Agerter shot in the head and back seated in his car, parked in his garage.
He was pronounced dead at the scene.
Police soon discovered that Agerter was on the phone with his younger sister at the time he was murdered.
Agerter had a home surveillance system at his residence. After watching some recorded footage, detectives saw what appeared to be Sinkevitch walking quickly from a white minivan parked across the street from Agerter’s house just after he pulled into his garage.
She was wearing a dark hooded sweatshirt, dark pants and shoes, gloves, and carrying papers in one hand with a bag draped over her shoulder. The subject was outside the views of the cameras briefly, then reappeared and scurried back across the street to the white minivan and sped away.
Police ran a background check on Agerter and discovered that he had been in several legal disputes with Sinkevitch.
Agerter and Sinkevitch were romantically involved until they broke up in March 2016. In April 2016, Agerter was granted an order of protection in Maricopa County Superior Court against Sinkevitch. Records show Agerter made efforts to conceal his new address from Sinkevitch.
Police also discovered Michael filed a motion to establish paternity and requested parenting time for his and Sinkevitch’s son, who was born in October. Agerter never saw his son before he was murdered, and the paternity results later confirmed he was the boy’s father.
During the investigation, police tracked Sinkevitch to a residence belonging to her friend and coworker.
Sinkevitch’s gray Mitsubishi Mirage and her co-worker’s white Chrysler Town and Country were parked outside the residence. The van appeared identical to the van seen on Agerter’s home surveillance system. Sinkevitch’s co-worker denied driving to Maricopa during the afternoon of Agerter’s murder. Upon reviewing workplace surveillance video, detectives discovered Sinkevitch was not at work all day as she claimed in an earlier interview.
Police confirmed Sinkevitch had ample time to drive to Agerter’s house, commit the murder, and return to work. Police arrested Sinkevitch in Avondale, Arizona on December 21, 2016, after receiving a tip. Witnesses told police Sinkevitch owned a handgun, but a gun was never located.