On the night of February 18, 1965, about 500 people organized by the SCLC activist C. T. Vivian left Zion United Methodist Church in Marion and attempted a peaceful walk to the Perry County jail, about a half a block away, where young civil-rights worker James Orange was being held. The marchers planned to sing hymns and return to the church. Police later said that they believed the crowd was planning a jailbreak. Among the marchers were Jackson, his 16-year-old sister, Emma Jean, mother, and maternal grandfather Cager Lee.