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.

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

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.

Guy Edward Bartkus was identified as the suspect accused in the bombing targeting a Palm Springs, CA, fertility clinic, and authorities are investigating a possible manifesto, according to the FBI. The bombing occurred on May 17,

The FBI declared a “blast zone” and cleared residents in the Twentynine Palms neighborhood over concerns that bomb-making materials could be inside a home.

Bartkus was identified as the key suspect by the FBI on Sunday, after his body was discovered near a burned-out vehicle outside the clinic. He had reportedly attempted to livestream the explosion, with a camera found set up on a tripod nearby, although no footage was uploaded online.

Authorities are investigating what appear to be radical views the Palm Springs bombing suspect expressed online in the months before Saturday’s attack. Here is what we know.

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.