Arlington Heights police say man died one day after being found in house with dead woman, dead dog

ARLINGTON HEIGHTS, Illinois - Arlington Heights police said a man has died after he was found in his home with a dead woman and a dead dog.

Around 7:30 p.m. Saturday, Arlington Heights police received a 911 call from a man who said he had killed his wife, and his dog, and was planning to die by suicide.

They tracked the call to the 300 block of West Campbell, and officers were outside when they heard a single gunshot.

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Officers went into the house and found 74-year-old Cynthia Armstrong who was seated unresponsive at the dining room table, according to the Cook County medical examiner's office. She was pronounced dead at the scene. 

Ronald Armstrong, 76, was also unresponsive but breathing in an adjoining room with a gun in his hand, according to officials. The family's dog was found dead.

Ronald Armstrong was rushed to the hospital, but died of his injuries late Sunday afternoon.