Aug. 19, 1993 -- Dr. George Tiller was shot in both arms as he drove out of the parking lot at his Wichita, Kan., clinic. Rachelle (Shelley) Shannon was convicted and sentenced to 11 years in prison.
July 29, 1994 -- Dr. John Bayard Britton and his escort, James Barrett, were slain outside a Pensacola, Fla., abortion clinic. Paul Hill, 40, a former minister and an abortion foe, was convicted of state murder charges and sentenced to death. In a separate federal trial, Hill was sentenced to life without parole for violating the new federal clinic-protection law.
Nov. 8, 1994 -- Dr. Garson Romalis, who performs abortions in Vancouver, B.C., Canada, was shot in the leg while eating breakfast at home. No arrests have been made.
Dec. 30, 1994 -- A gunman killed two staff workers and five other people at two abortion clinics in the Boston suburb of Brookline. A 22-year-old hairdresser named John Salvi was later arrested and charged with murder.