On this day, Dec. 30, in 1994, John Salvi III went on a shooting spree at two women's clinics in Massachusetts, killing two receptionists and wounding five people.

Salvi, 22, was captured the next day after firing 23 shots at a medical clinic in Norfolk.

The attack was the worst anti-abortion violence in U.S. history at the time.

His attorneys said he was driven by insane urges and imaginary voices, and Salvi believed "the Mafia and the Ku Klux Klan were out to get him."

Salvi was found guilty of both killings and sentenced to two life terms without parole. He was found dead in his prison cell with a garbage bag over his head tied around his neck in an apparent suicide in 1996.

- Scott McCabe