Dexter Barry pleaded with police, jail staff and a court judge that he needed his medication to maintain his heart transplant. The ACLU is urging a state investigation into the 54-year-old's death.

David Bennett, 57, died Tuesday at the University of Maryland Medical Center. He was the first person to receive a heart transplant from a pig.

NPR's Scott Simon shares the story of Lucio Arreola, a father of three who's recovering from a heart transplant and whose family recorded a song for him using his own heartbeat.