Guy Edward Bartkus, 25, is allegedly responsible for bombing a fertility clinic in Palm Springs, California. He was reportedly a self-proclaimed "pro-mortalist" and left behind "anti-pro-life" writings.

Investigators are combing through the writings of a 25-year-old man believed responsible for an explosion that ripped through a Southern California fertility clinic over the weekend.

Authorities have identified Guy Edward Bartkus, a 25-year-old resident of Twentynine Palms, as the man they say is behind a car bombing in Palm Springs.

The Palm Springs fertility clinic bombing appears to have been carried out by a man consumed with nihilism and anti-natalist ideology.

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

A suspect believed to have carried out the bombing outside a California fertility clinic on Saturday has been identified as 25-year-old Guy Edward Bartkus. Bartkus has been named as a suspect in the bombing outside a Palm Springs fertility clinic, two law enforcement sources familiar with the investigation told KCAL News.

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.

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,

Here's the latest on the suspect in "one of the largest bombing investigations we've had in Southern California," according to the FBI.

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.