David Gunn (doctor) by another anti-abortion activist, John Burt. From March 1993 through May 2009, Gunn was first of a total of four doctors murdered by killers proclaiming pro-life motivation. The others were doctors Barnett Slepian, John Britton and George Tiller. Gunn's murder helped lead to the passage of the Freedom of Access to Clinic Entrances Act. Gunn's death also prompted Paul Jennings Hill to issue the Defensive Action Statement, signed by 30 anti-abortion leaders, which justifies the killing of abortionists to protect fetuses. In 1994, Gunn's violent death inspired the first official single "Get Your Gunn" by rock band Marilyn Manson. The
Assassination of George Tiller sham" and felt the justice system failed in letting Tiller go free. On May 30, one day before Tiller was killed, a worker at a Kansas City clinic told the Federal Bureau of Investigation that Roeder had tried gluing the locks of the clinic shut, something Roeder was suspected of doing there before years earlier. The "Kansas City Star" reported that a man of Roeder's description had glued the locks shut at the Central Family Medicine clinic in Kansas City on May 23 and May 30. President Barack Obama said, "I am shocked and outraged by the murder of Dr.