Dresch was born in East St. Louis, Illinois in 1943, the first son of Rev. Lester and Lenore Dresch. He graduated from high school at the age of 16. At 19, he married Linda Ness and graduated from Miami University in Ohio. He later earned a Ph.D. in economics at Yale University.
In 2005, Dresch was running a company called Forensic Intelligence International. While working with mobster Gregory Scarpa Jr., who was being held in the same prison as Terry Nichols (convicted accomplice of Timothy McVeigh in the 1995 Oklahoma City bombing), Dresch found out about explosives concealed in Nicholls' former home, and tipped off the FBI and members of Congress.
Dresch died August 6, 2006, at his home in Hancock, Michigan. He and Linda had two sons and two daughters.
In August 2021, Dresch' son Karl pleaded guilty to a misdemeanor for his participation in the 2021 storming of the United States Capitol. In exchange for his plea, prosecutors dismissed four other counts. He was sentenced to time served after spending six months in prison awaiting trial.[6][7]
^Daniel Loepp, Sharing the Balance of Power: An Examination of Shared Power in the Michigan House of Representatives, 1993–94. Ann Arbor: University of Michigan Press, 1999; pp. 126–130 passim.