Letter Carrier Michael Till was recently delivering mail in Warminster, PA, when he came upon an unconscious man lying in a roadway.
Till rushed to check on the man, who was barely breathing, and immediately called 911.
The emergency dispatcher guided the Postal Service employee through the process of performing chest compressions on the man, who started breathing normally again.
Paramedics soon arrived and took over.
The man recovered from the incident and later thanked Till for his lifesaving assistance.