UPDATE (8:55 a.m., August 1):
An interim complaint said the person who requested a welfare check for Sarane Elizabeth Lyons told detectives that they had not seen Lyons' adult son, 49-year-old Michael Lyons, for about four days.
Another witness also said she had not seen the son for 3-4 days. She told detectives she hadn't seen Sarane Lyons for about a month, the complaint said.
A third witness told detectives that she had heard a "weird loud gutteral noise" coming from the back of the incident location while she was in her own backyard on July 17.
On July 31, Michael Lyons came into the main police station, downtown, to turn himself in, the complaint said.
Lyons told detectives that he accidentally killed his mother. He told detectives that "it happened in a sudden flash of rage," the complaint said.
Lyons told detectives that he had gotten into an argument with his mother, and during that argument, his palm struck his mom's forehead, causing her head to move back and hit concrete, the complaint said.
He then picked up his mother and tried to put her on the couch inside the home, but she was too heavy, so he put her on the ground.
Michael knew his mom was dead, but did not call authorities, the complaint said. He instead stayed in the home for an additional three days before leaving.
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Tucson Police officers have arrested 49-year-old Michael Andrei Lyons after his mother was found dead in a Midtown home.
According to TPD, officers conducted a welfare check near Fort Lowell Road and Columbus Boulevard at 6:30 p.m. on July 25. Upon arrival, 74-year-old Sarane Elizabeth Lyons was found dead inside the home.
Officers determined her son also lived at the home with her, the man suspected of her death. TPD says he had not been seen for several days. Detectives were notified after officers concluded she died under suspicious circumstances.
On July 31, the son arrived at a Tucson Police station. He was interviewed and placed under arrest due to probable cause. He was booked into Pima County Jail and is facing a second-degree murder charge.
The case remains under investigation and anyone with information is urged to call 911 or 88-CRIME to remain anonymous.
