Chapman died of cholangiocarcinoma on Tuesday, August 23, 2005 at the age of 31 — three years after a successful liver transplant at Toronto General Hospital (a location he loved to explore).

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.

His book, Access All Areas: a user's guide to the art of urban exploration, was published in July 2005, shortly before his death.

[4] The book serves as a how-to-guide to urban exploration — covering topics from basic stealth and concealment, to social engineering techniques to ethics.

Chapman is credited with coining the term "credibility prop", which describes a device, piece of equipment or other appurtenances used solely to reduce suspicion if one is encountered in a normally restricted area.