Before the man police believe detonated a large explosive that blasted through a fertility clinic in Palm Springs, people who knew Guy Edward Bartkus should have alerted authorities about his

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.

Authorities called the attack terrorism and said Guy Edward Bartkus left behind nihilistic writings that indicated views against procreation, an idea known as anti-natalism.