A suspect believed to be the perpetrator of the fertility clinic bombing in Palm Springs, Calif. Saturday, has been identified as 25-year-old Guy Edward Bartkus, a resident of Twentynine Palms, home to a large U.

Authorities say the prime suspect in the bombing was also the sole fatality of the attack. Reproductive health care advocacy groups warned about threats faced by medical providers.

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