Mark Shadley is an active member of Black Hills Paranormal Investigations. Josh Wennes is an active member of Black Hills Paranormal Investigations. He researches and writes about ...ver maisMark Shadley is an active member of Black Hills Paranormal Investigations. Josh Wennes is an active member of Black Hills Paranormal Investigations. He researches and writes about the haunted history of Deadwood and the surrounding areas.ver menos