FBI searches for missing agent, believed to be suicidal

FBI agent Stephen Ivens was last seen Friday at his Burbank home. He might have his gun, and dogs tracked his scent toward the Verdugo Mountains, officials say.

Authorities launched Burbank's largest manhunt in 20 years in search of a missing FBI agent who was believed to be suicidal and possibly carrying a handgun, officials said Saturday.

effects of co poisoning snmp monitors gas leak detection companies