Lawrence Sigmund Bittaker and Roy Lewis Norris are two American serial killers and rapists known as the Tool Box Killers, who together committed the kidnap, rape, torture and murder of five teenage girls over a period of five months in southern California in 1979.

Described by FBI agent John Douglas as the most disturbing individual he has ever performed a criminal profile upon, Bittaker was sentenced to death for five murders on March 24, 1981. Norris accepted a plea bargain whereby he agreed to testify against Bittaker and was sentenced to life imprisonment on May 7, 1980, with possibility of parole after serving 30 years. Bittaker and Norris became known as the Tool Box Killers due to the fact the majority of instruments used to torture and murder their victims were items normally stored inside a household toolbox.

Both Bittaker and Norris are now deceased.

One page handwritten letter. Letter is general content and is signed in full. Original matching envelope with hand drawn artwork on the front is included.