The man hailed as a hero after he helped catch the suspect in the assault on civil rights pioneer Rosa Parks pleaded guilty Tuesday to driving the getaway car during a 1991 bank robbery. Mario Jefferson pleaded guilty to aiding and abetting in the $65,000 robbery of an automatic teller machine. Under a plea agreement, Jefferson was expected to be sentenced to eight months in prison, WXYZ-TV reported. No sentencing date was set. In August, after seeing a picture of the man wanted for beating and robbing Parks, Jefferson and a friend spotted the suspect in an alley, tackled him and held him until police arrived. FBI agents arrested him after seeing him on TV.