The 25-year-old died after authorities say he bombed a Palm Springs fertility clinic. Experts warn that online nihilism is fueling similar violence in the US and Europe.

As a child, Guy Edward Bartkus enjoyed playing with smoke bombs and model rockets, and once managed to burn down his family home with a box of matches.

In the end, his plot failed. A heroic firefighter and an FBI agent went into the heavily damage clinic and rescued medical records and embryos of patients who are trying to conceive.

The suspected bomber of a California fertility clinic appears to have declared “war against pro-lifers” in a smattering of online

One national security expert told NewsNation that Bartkus’ philosophy is one of the strangest domestic terrorist movements he’s ever seen. The suspect apparently described himself as pro-mortalist, a fringe belief that includes a desire to die as soon as possible in order to prevent further suffering.

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.

A 25-year-old man suspected of terrorism in a deadly explosion at a California fertility clinic reportedly had a website which referenced Satan and expresses hostility toward Christians and pro-life

Sitting here with my kids, knowing that this guy was 50 feet away — a bomb of that magnitude could have destroyed our house… was pretty insane,” a neighbor said.