SCOTTSDALE, Ariz. -- Police booked a Scottsdale man on suspicion of first-degree murder in connection with the death of his wife.
According to Sgt. Mark Clark of the Scottsdale Police Department, Michael Jay Cohn called911 late Wednesday morning and told the operator that he had strangled his wife.
Linda Cohn was a psychologist specializing in substance-abuse counseling. Officers found her body in a bathroom in the couple's Scottsdale home.
Nobody else was home when officers arrived.
They arrested Cohn, 61, without incident.
Investigators have released few details about Linda's death, but a charge of first-degree murder requires premeditation.
At this point, detectives have not said why they believe Cohn planned to kill his wife. There is no known history of domestic violence and police had not been called to the Cohns' home before Wednesday.
"As far as our investigation goes, we know who did it and what happened," Clark said hours after officers discovered Linda's body and arrested Cohn. "We just don't know why."
Neighbors were stunned to learned that Cohn allegedly killed his wife.
Police have not released Cohn's 911 call. That could happen as soon as Thursday afternoon if the Maricopa County Attorney's Office gives its approval.
Cohn is undergoing psychiatric evaluation.
First-degree murder is a class 1 felony. A conviction can carry the death penalty or life in prison.