Kevin Hartley was an organ donor, and his mother had one wish: to hear her son’s heartbeat one more time. She got the chance.

As her 21-year-old son Kevin lay dying in a hospital bed, Wendy Hartley asked her daughter, Amber, to find a stethoscope. She wanted to listen to his heartbeat once more before he passed. Nearly two years after his death, she heard his heartbeat again — this time in the chest of Rhonda Lucas, a Johnson City, Tennessee, nurse who received his heart.