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 suspect behind the explosion at a Palm Springs, California, fertility clinic, Guy Edward Bartkus, died as a result of the attack. Law enforcement officials said Bartkus made a series of posts on social media,

The car bombing outside a California fertility clinic that killed one person and injured four others appears to have been driven by anti-natalist ideology, according to two senior law enforcement officials briefed on the incident.