(Superior, AZ) A Pinal County woman is under arrest, suspected of killing her two babies. Last night, Pinal County detectives found a 2 year old boy and a 10 month old girl dead in a car outside a home in Superior, still strapped into their car seats. Officers arrested the children's mother, 20 year old Brittany Velasquez. She's being charged with 2 counts of murder. An autopsy is underway to determine how the children died.