A Marana man is in police custody, accused of killing his wife Saturday morning, according to the Pima County Sheriff's Department.
David Mann, 53, is facing one count of second degree murder for the incident.
The PCSD says it started at around 10:30 a.m. on North Trico Road when Mann called 911 to report his wife, Donna Mann, was injured. First responders found her not breathing with obvious signs of trauma. They tried to save her life, but she was pronounced dead at the scene.
Not long after, David Mann was arrested and booked in the Pima County Jail.
Authorities say the investigation is ongoing.