Tattoo artist Peter van der Helm, shown in his studio in Amsterdam in December 2013, has set up a business to preserve the tattoos of the dead. Michael Kooren/Reuters/Corbis hide caption

itoggle caption Michael Kooren/Reuters/Corbis

Erick Munoz stands by a photo of his wife, Marlise Munoz, at home in Fort Worth, Texas, on Jan. 3. She is being kept on life support in a local hospital against the family's wishes. Fort Worth Star-Telegram/MCT via Getty Images hide caption

itoggle caption Fort Worth Star-Telegram/MCT via Getty Images