Paul Jennings Hill (February 6, 1954 – September 3, 2003) was a convicted American murderer. Hill murdered abortion provider, Dr. John Britton, and Britton's bodyguard James Barrett in 1994. Hill was sentenced to death by lethal injection and was executed on September 3, 2003.
https://en.wikipedia.org/wiki/Paul_Jennings_Hill
John C. Salvi III (March 2, 1972 – November 29, 1996) was an abortion opponent who carried out fatal shootings at two Planned Parenthood reproductive health clinics in Brookline, Massachusetts, on December 30, 1994, killing two and wounding five. These were the subject of intense media coverage. He was convicted, and later died in 1996 of an apparent suicide.
https://en.wikipedia.org/wiki/John_Salvi
On March 10, 1993, Michael Frederick Griffin murdered Dr. David Gunn in Pensacola, Florida in the United States. This was the first documented murder of an OB-GYN where the murderer's stated intention was to prevent a doctor from performing abortions.
https://en.wikipedia.org/wiki/Murder_of_David_Gunn