A grand jury has indicted an Oregon man on aggravated murder and other charges in last month's slaying of his wife and four kids.

Jackson County Chief Deputy District Attorney Beth Heckert said Tuesday the grand jury in Medford heard from 13 witnesses before handing up the indictments against 51-year-old Jordan Adam Criado.

The witnesses included police and fire investigators, a medical examiner and two friends of the wife.

Criado is accused of stabbing his wife, Tabasha Paige-Criado, and two of their children before setting fire to their Medford house on July 18.

Heckert says prosecutors have not yet decided whether to seek the death penalty.

Criado was in a hospital for three weeks before he recovered enough from smoke inhalation to be arrested. He is being held without bail