LONG BEACH — An autopsy failed to determine the cause of death for a 6-day-old twin boy whose mother was arrested on charges of murder, authorities said Monday.
The autopsy Sunday was inconclusive and investigators were awaiting results of toxicology and tissue tests, said Scott Carrier, a spokesman for the Los Angeles County coroner's office.
The coroner's office had not ruled out sudden infant death syndrome, police spokeswoman Karen Owens said.
The boy and his brother, whose names were not released, were born Nov. 15 at Long Beach Memorial Hospital without medical complications, Carrier said.
Carol Clark, 33, was arrested Saturday after the infant's body was found wrapped in a towel in a bedroom, authorities said.
Carrier said neighbors called police after seeing the mother standing on the front lawn, holding the twin and calling, "Where's my baby?"
She was being held without bail. The twin was placed in county care.