Original sentence: Chapman attended York University in the early 1990s and later studied book and magazine publishing at Centennial College.Chapman died of Cholangiocarcinoma on Tuesday, August 23, 2005 — three years after a successful liver transplant at Toronto General Hospital (a location he loved to explore).Chapman first published Infiltration in 1996.He also launched infiltration.He was 31 years old.He went on to serve as Editor at History Magazine and as Director of the Toronto Architectural Conservancy board.His book, Access All Areas: a user's guide to the art of urban exploration, was published shortly before his death in July 2005.In total, 25 issues were published — covering such urban exploration topics as the navigation of storm drains, evading hotel security and adventuring through abandoned military shelters.Jeff Chapman a.Ninjalicious (September 1973 — 23 August 2005) was a well-known Toronto-based urban explorer and founder of Infiltration: the zine about going places you're not supposed to go.The book serves as a how-to-guide to urban exploration — covering topics from basic stealth and concealment, to social engineering to ethics.org, an online version of the zine,  in 1996 — making him one of the pioneers of the online explorers' world
Edited sentence: He also wrote a book, titled "Access All Areas: a user's guide to the art of urban exploration", a how-to of urban exploring, covering topics from basic stealth and concealment, to social engineering to ethics.He was director of the Toronto Architectural Conservancy board in 2004/2005.Ninjalicious (real name Jeff Chapman, born 1973) was a famous and much-revered Toronto based urban explorer He was the founder of the famous Infiltration Zine, which he first started in 1996 and which ran the course of 25 issues, covering topics such as exploring storm drains, sneaking into hotel pools, and adventuring through abandoned military shelters.Ninjalicious died at the age of 31 on Tuesday, August 23, 2005 of Cholangiocarcinoma, three years after receiving a successful Liver transplant at Toronto General Hospital, which he loved to explore.Ninjalicious is also considered one of the founders of the online explorers' world, founding the website infiltration.org in 1996