Isaac Chauncey Haight (May 27, 1813 – September 8, 1886), an early convert to the Latter Day Saint Movement, was a colonist of the American West remembered as a major conspirator of the Mountain Meadows massacre.A constable in the city of Nauvoo in Illinois, Haight was the first member of Church of Jesus Christ of Latter Day Saints to hear of the death of Joseph Smith, the founder of the Latter Day Saint Movement, when the messenger delivering the news rode up to the Nauvoo Temple, which Haight at the time was guarding.Emigrating with The Church of Jesus Christ of Latter-day Saints (LDS Church) to Utah in 1847, the following year Haight and about fifty others were sent by Brigham Young about 300 miles south from Salt Lake City to establish the city of Parowan.