The late Richard J. Diven spent nearly forty years in the demolition industry, as a member of the senior management team at structural demolition company ICONCO between 1964 and 2000 and as founder of R. J. Diven Consulting, LLC. He played a key role in projects ranging from earthquake repairs in Los Angeles to the demolition of aircraft hangars in Pearl Harbor.Mark Shaurette is an associate professor in Building Construction Management at Purdue University. He was previously president of Meridian Homes, Inc., and vice president of Ryan Homes. He has a master's degree in civil engineering from MIT and a PhD from Purdue University.