On a warm early morning in 2007, police officer Mark Dibona was sitting in his cruiser in front of a fire station in Sanford, Florida.

Dibona was taking notes in his police logbook when a woman carrying an unconscious infant approached him, frantically asking for help.

“My baby isn’t breathing!” she said.

Dibona performed CPR but was unable to revive the infant. The three-month-old baby boy died at a nearby hospital.

He blamed himself for the death.