Guy Bartkus, the sole suspect in the bombing of a Palm Springs fertility clinic, exhibited warning signs prior to the attack that should have been reported to law enforcement, the city’s police chief told CNN Monday.

A suspect believed to have carried out the bombing outside a California fertility clinic on Saturday has been identified as 25-year-old Guy Edward Bartkus. Bartkus has been named as a suspect in the bombing outside a Palm Springs fertility clinic, two law enforcement sources familiar with the investigation told KCAL News.