Dennis Oppenheim died of liver cancer on January 22, 2011 .
via: Vitro Nasu
A pioneer of Earthworks in the late 1960s, Dennis Oppenheim has pursued an adventurous career in sculpture and installation, film and video, and body and performance art, but he never stopped making outdoor work. For the past ten years, Oppenheim has concentrated almost exclusively on public art
source: artforum 2009