Backyard Time Machine: The Time Travel Mystery of Mike “Mad Man” Marcum

EXPOSED! Michael "Mad Man" Marcum Time Traveler HOAX REVEALED

Missouri Time Machine Man Who Disappeared… Has Finally Returned

The Man Who Invented Time Travel: Mike "Madman" Marcum

Building a Time Machine | Art Bell interviews Michael "Mad Man" Marcum (Interview-1, 1995)

Man Who Invented Time Machine Vanishes... Years Later, He Reappears With a Haunting Message

The Man Who Tried to Build a Time Machine… Then Vanished