Days after a car bombing outside a fertility clinic in Palm Springs, investigators are still combing the scene and the suspect's home as they search for a motive.

A neighbor of Guy Edward Bartkus — the 25-year-old man identified by the FBI as the suspect in the deadly Palm Springs fertility clinic bombing — says they are “shocked” to learn explosives may have been assembled next door.

The man authorities allege set off a deadly car explosion outside a California fertility clinic left behind chilling online writings

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.

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.