Chris Truitt holds a photo of his daughter, Alyssa, who died when she was 2, at his home in De Forest Wis. After donating her organs and tissues, he decided on a career change that made him rethink tissue donation. Narayan Mahon for NPR hide caption

itoggle caption Narayan Mahon for NPR

Unlike organs, tissue doesn't need to be transplanted immediately. Storage facilities like Tissue Banks International in San Rafael, Calif., process and store donated tissue for later use in medical products or as transplants. Noah Berger/AP hide caption

itoggle caption Noah Berger/AP

Organ and tissue donation forms vary from state to state. Some are very general, while others allow people to choose or restrict what they want to donate. iStockphoto.com hide caption

itoggle caption iStockphoto.com

In 2008, Michael Mastromarino was sentenced in a New York City courtroom for enterprise corruption, body stealing and reckless endangerment. Jesse Ward/AP hide caption

itoggle caption Jesse Ward/AP