The first movie is Texas Chainsaw Massacre.the movie is based on Ed gein or commonly known as "The butcher of Plainfield born in July 26, 1984 gein took Mary Hogan's life she disappeared on December 8th that was his first murder.

The second movie is Henry. This movie is based on the crimes Henry Lee Lucas made.born in August 23, 1936 Henry murdered his mother in cold blood in the year 1960 and killed two other victims in 1983.

This is just two movies that are based on real murders.