David Lyons (right) met Buffalo Bills safety Damar Hamlin at a CPR training event held by the team and the American Heart Association. (Photo courtesy of Russ Lyons)

David Lyons (right) met Buffalo Bills safety Damar Hamlin at a CPR training event held by the team and the American Heart Association. (Photo courtesy of Russ Lyons)

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The ripple effects of Damar Hamlin's cardiac arrest still strong a year later

Whenever Quentin Tomlin heads out to play high school football, his mother, Laura, knows one thing is for sure: The team won't take the field without access to an automated external defibrillator, or AED.