David McGowan was an American author and researcher known for his work on conspiracy theories and the music industry. He gained attention for his books, including "Weird Scenes Inside the Canyon," which explores the connections between the Los Angeles music scene of the 1960s and 1970s and various historical events. McGowan's writing often focused on the intersection of culture and politics, examining how popular music can reflect and influence societal issues. His unique perspective and critical analysis have made him a notable figure in discussions about counterculture and the impact of media on public perception.