A welfare check led deputies to a heartbreaking discovery: U.S. Coast Guard veteran Yohan Sanchez, his wife Rebeca, their 15-year-old son Michael, and 2-year-old Samuel were found unresponsive inside their home.

Investigators determined the cause was carbon monoxide poisoning — no signs of foul play, just a silent, invisible gas that can take lives without warning. Only hours earlier, Yohan had been laughing on the phone with his mother, unaware of the danger building inside the house.

Four lives ended in what should have been their safest place.

It’s a painful reminder of how crucial carbon monoxide detectors are — a small device that can mean the difference between life and tragedy.

Four lives ended in what should have been their safest place.

It’s a painful reminder of how crucial carbon monoxide detectors are — a small device that can mean the difference between life and tragedy.