The Tate murders were perpetrated by a family who also attempted to assassinate which U.S. president?
Tate murders: The Tate murders were the notorious and brutal killings of five people and one unborn child by members of the Manson Family on August 8-9, 1969. Manson Family:  Group members were also responsible for a number of other murders and assaults, and the attempted assassination of President Gerald Ford.
Gerald Ford