Updated

A Prescott stockbroker convicted of killing his ex-wife could spend the rest of his life in prison.

Prosecutors say Steven DeMocker bludgeoned Carol Kennedy with a golf club at the home the two once shared in Prescott, shattering her skull. The supposed murder weapon never was found.

Prosecutors relied heavily on circumstantial evidence in securing a conviction on first-degree murder and other charges. They argued that DeMocker killed Kennedy to cash in on her life insurance policy and to avoid alimony payments.

The 60-year-old DeMocker is scheduled to be sentenced Friday in Yavapai County Superior Court.

He has maintained that he is innocent. DeMocker's attorneys say authorities didn't properly investigate Kennedy's death and that another man could have killed her. She was 53 when she was killed in 2008.