A Grand Island family is lucky to be alive after deadly carbon monoxide filled their home on Sunday morning.The homeowner called 911 after she found her 6-year-son unresponsive in his bedroom, and it was determined that there was a carbon monoxide leak in the home. The family did have a CO detector, but investigator determined that it was malfunctioning. The cause of the leak is still under investigation.

Common symptoms of exposure to carbon monoxide include:

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