Roberto Wagner Fernandes (April 26, 1965 – December 13, 2005) was a Brazilian serial killer and rapist who was posthumously linked to the murders of three prostitutes in Miami, Florida from 2000 to 2001. Fernandes, who had been acquitted of murder in the 1996 shooting of his wife, died in a plane crash in Paraguay before he could be arrested for his crimes, and since his identification, investigators in both the United States and Brazil have said that he might have been responsible for other murders.