Artur Hojan (7 August 1973 – found dead, 9 February 2014) was a journalist and published author specializing in the history of the Chełmno extermination camp and the Nazi involuntary euthanasia programme conducted in the territory of occupied Poland by the SS during World War II. Hojan was the co-founder of the Tiergartenstrasse4 Association in 2005 (together with Cameron Munro) devoted to Aktion T4 history, with emphasis on the Kościan psychiatric hospital located where he lived. Hojan, age of 40, left home in the evening of 1 December 2013 at 8 p.m. for a walk around town and disappeared. His body was found two months later on 9 February 2014 floating in the Obra canal near the town of Kiełczewo, and identified later. The cause of death has not been determined. He was buried at the Kości