'God' Told Suspect in Elderly Slaying to Kill

July 22, 2008— -- A mentally disturbed woman in Arizona is facing murder charges after police say she broke into an elderly neighbor's apartment Sunday evening and fatally stabbed an 83-year-old woman -- less than an hour after she had been released from a psychiatric care facility.

Scottsdale police say they had taken the women to a hospital for observation the previous week.

The motive described by the murder suspect to investigators, according to a probable cause statement: "God told her to do it."

Jill Manahan, 40, faces second-degree murder and burglary charges in connection with the stabbing death of Grace Cook, an elderly woman who lived below Manahan in a Scottsdale apartment complex, Dave Pubins, spokesman for the Scottsdale Police Department, told ABCNews.com. Manahan is currently being held at a Maricopa County jail on $100,000 bond, according to jail records. It was unclear whether she had hired an attorney.

Scottsdale police responded to a 911 call from the apartment complex Sunday shortly after 5:15 p.m. There, they found a broken tree branch that had fallen over a fence into Cook's apartment patio. They also found damage to Cook's screen door, Pubins said.

"They make entry and find the victim deceased by an apparent stab wound," Pubins said, "and they do recover a weapon, which was a knife." Pubins said that Cook had been stabbed in the back.

Witnesses told investigators they saw Manahan climbing into the Cook's apartment through a window. Authorities recovered paperwork from a mental health facility on the grounds of the complex -- including a contract with the transportation company that drove her to her apartment -- that indicated that Manahan had been released from care earlier that afternoon. "She's there less than a half-hour before the homicide takes place," Pubins said.

Authorities went to Manahan's door and, when they got no response to a knock, forced entry. Inside, they discovered Manahan covered in blood, Pubins said. She was taken into custody, interviewed and charged early Monday morning with Cook's murder.

The Scottsdale Police Department was already familiar with Manahan. Last Thursday, officers, including a crisis intervention specialist, responded to calls from neighbors in the same apartment complex who reported that Manahan was "behaving strangely and speaking incoherently," Pudins said. Authorities made the decision to transport Manahan to the Scottsdale Healthcare-Shea Thursday, and on Friday, she was moved to the Urgent Psychiatric Care Center in Phoenix, according to Pudins.