An autopsy on 3-year-old twin girls found dead in their Northern California home shows they died of multiple stab wounds.
The Vacaville Reporter says the twins' mother, Monica McCarrick, is in custody as police investigate the killing of Tori and Lily Ball.
McCarrick also is suspected of trying to kill herself and setting fire to the family's apartment. She remains hospitalized in critical condition.
Investigators have not released a possible motive.
Neighbor Andre Douglas told the newspaper that he and other neighbors noticed Tuesday night's fire and broke open the door. In the hallway of the smoke-filled apartment, Douglas says he saw a bloody sword and a bottle of pills.
Police would not comment on what was found in the home.
Information from: The Reporter, http://www.thereporter.com