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

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.

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

Guy Bartkus, the sole suspect in the bombing of a Palm Springs fertility clinic, exhibited warning signs prior to the attack that should have been reported to law enforcement, the city’s police chief told CNN Monday.

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.

Investigators believe that 25-year-old Guy Edward Bartkus packed a silver Ford Fusion full of explosives and detonated the vehicle outside of the fertility clinic in Palm Springs on Saturday. Bartkus

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,

YouTube accounts believed to belong to Palm Springs bombing suspect Guy Bartkus point to an interest in experimenting with homemade explosives and chemicals.

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.

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