The community, r/Efilism, is devoted to a philosophy mentioned on a website published before Saturday's bomb blast.

Guy Edward Bartkus, 25, is the primary suspect in the bombing at American Reproductive Centers in Southern California. The bombing left four people injured, and Bartkus died in the explosion that has been called an “intentional act of terrorism,” according to the FBI.

The FBI believes the suspect in the Palm Springs explosion left behind "anti-pro-life" writings before carrying out the attack, officials said.

Manifesto said to be written by Guy Edward Bartkus, prime suspect behind attack on a fertility clinic, espouses disturbing pro-death views.