A 57-year-old Wisconsin man accused of fatally shooting his sister at her home on Christmas Eve has been ordered by court to undergo a mental competency evaluation.

The public defender for Joseph G. Green requested the examination before a preliminary hearing, which will determine if enough evidence exist for trial in Dane County.

The Wisconsin State Journal reported Thursday that Green faces a first-degree intentional homicide charge for the death of his sister, 63-year-old Sheila M. Green. Police say he shot her sister multiple times at her Madison home.