Published: Nov 29, 2012 3:57 PM EST

DAVIE, Fla. (AP) - A six-year-old girl is dead after authorities say she was killed by her father in a murder-suicide.
    
Davie Police Capt. Dale Engle says the child, her father and a dog appear to have died from carbon monoxide poisoning.
    
Two schoolchildren discovered the bodies in a van parked outside the Davie home of the girl's mother Thursday morning. They alerted a neighbor who pulled the child out of the vehicle and attempted to resuscitate her but could not.
    
Investigators believe the child's father, 30-year-old Paul Andrade, parked outside his ex-wife's home and attached a hose from the exhaust pipe to inside the vehicle.
    
Engle says the man was upset that his wife had recently remarried. He had an overnight visitation with his daughter when the deaths occurred.

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