Tan Lam, 50, also known as Danny Tan Lam, is accused of second-degree murder in the death of his 41-year-old wife, Melody, whose body was found at their Kapahulu home Saturday morning.

In the affidavit, police officer Thomas Chang said he was sent to the Kaunanoa Street home after a male caller told police dispatch that he had killed his wife.

The officer said when he got there, he was waved down by Lam, who told him he was sorry and he had killed his wife, the affidavit said. Lam said his wife was in the downstairs bedroom and he didn't want his children to wake up and see her, the affidavit said.

Lam had "blood-like stains" on his right lower leg and the area of his left elbow, Chang said in the affidavit.

The Lams, both agents for Dower Realty, have two children, ages 8 and 6, who are now with relatives.

Another officer found the wife's body with serious head injuries on the mattress in the downstairs bedroom, Chang said. Near the body was a "large hammer," he said.

Lam was taken to Queen's Medical Center for medication, the affidavit said.

"During that time Lam said that voices told him to kill his wife and to use the hammer," Chang said.

Lam was arrested and held on $500,000 bail.

Second-degree murder carries a mandatory life term with the possibility of parole.