An argument over room temperature at a West Side nursing home may have been the cause behind a deadly shooting Sunday, according to a San Antonio Police Department report.

Manuel Espinoza, 50, was arrested shortly after the shooting Sunday afternoon.

The report said he was visiting his mother at the Westover Hills Rehabilitation and Healthcare Center at the time of the shooting, which happened before 5 p.m. It says Liceaga shared a room at the facility with Espinoza's mother, and the two women had an ongoing dispute about the temperature of the room.