The general populace of Earth was unaware of Coroner's existence
Place of Birth
Silver Surfer #139 (1998)
While walking through a strangely deserted town, the trio was ambushed by the man called Coroner. He revealed the mystery behind the deserted town by displaying the souls of the townspeople trapped in his spell. Bargaining with their lives, he convinced the Surfer to submit to his twisted demands and he returned the townspeople to normalcy. Meanwhile, the Surfer and Alicia were pulled through a vortex of the Coroners creation, leaving the Gargoyle behind.