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.

Officials say police and firefighters have responded to an explosion that rocked the city of Palm Springs and damaged a fertility clinic.

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