Bartkus is believed to be the person who detonated a bomb at the Palm Springs American Reproductive Center, which offers services like IVF, because he was aligned with the pro-mortalist and anti-natalist movements—the idea that humans should not continue to procreate.

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

Federal investigators say the man responsible for a suicide bombing outside a fertility clinic in Palm Springs, California, had personal ties to Washington state.

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