MARICOPA COUNTY, AZ. (THECOUNT) — Desiree Colter, of Phoenix, Arizona, has been identified as the victim in a Tuesday morning murder-suicide in Maricopa County. John Parker has been identified as the shooter.

Colter, 33, was shot dead in an apparent murder-suicide near Phoenix Tuesday morning.

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According to reports, Parker, 43, fatally shot Colter before turning the gun on himself at a Phoenix apartment near Wonderview Road and 40th Avenue around 9 a.m. Tuesday.

Officials say, Colter and Parker were in a relationship and lived together in the apartment.

The couple had an argument that turned physical, say authorities.

The cause of the deadly incident remains under investigation.

Geo quick facts: Maricopa County is located in the south-central part of the U.S. state of Arizona. The U.S. Census Bureau estimated its population was 4,485,414 as of 2019, making it the state’s most populous county, and the fourth-most populous in the United States, containing more than half the population of Arizona – Wikipedia.