Colorado State Professor Emeritus Anthony Tu was awarded with 3rd class of rising sun order in 2009. He’s expertise about a deadly nerve gas helped the Japanese identify and catch suspects in the sarin gas attacks in the 1990s. Japanese officials used Tu's assistance to analyze the sarin and its byproducts to identify the manufacturing facility where the religious sect Aum Shinrikyo produced 70 tons of the deadly nerve gas. Tu’s knowledge of chemicals produced from the degradation of sarin in soils was instrumental in linking Aum Shinrikyo definitively with the manufacture and use of sarin, evidence that helped convict the sect's leader, Shoko Asahara, who was later sentenced to be hanged. In 2002 he even wrote a book about his experience titled “Chemical Terrorism: Horrors in Tokyo Subway and Matsumoto City.”