Sharon Kinne committed three murders in the 1960s, two in the United States and one in Mexico, and may have killed more which would qualify her as a serial killer. Convicted of the latter, she escaped a Mexican jail and disappeared from the radar. It was almost six decades before the mystery of her whereabouts was solved; she had one of the longest outstanding fugitive warrants in history.

Sharon Elizabeth Hall was born in Independence, Missouri, most famous as the home town of President Harry Truman, on November 30, 1939, to Gene and Doris Hall. The Halls belonged to a Mormon sect known as the Reorganized Church of Jesus Christ of Latter-day Saints (later Community of Christ). The family moved to Washington in the early 1950s but came back to Missouri in 1955. A year later, Sharon, now 16, met 22 year old James Kinne, a student at Brigham Young University, and they had a summer romance that ended when the fall semester began and James left to return to college. Sharon did not want to let him go and was also eager to escape from life in small town Missouri, so she wrote him a letter claiming she was pregnant. James took leave from college and went back to Independence, where they married October 18, 1956. Sharon falsified the marriage license by giving a birthdate of 1937 rather than '39, which would make her 18, and that she was married previously to a man who had died.