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.

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.