No explosives were found at the apartment of a Washington state man who allegedly threatened the president, police say. The man, Anton Caluori, was arrested Tuesday afternoon after he brandished a shotgun at Secret Service agents attempting to question him, The Seattle Times reported. The agents had gone to Caluori\'s apartment in Federal Way after he allegedly sent e-mails threatening President Obama to the FBI. Residents of Caluori\'s apartment complex were evacuated after the arrest as Federal Way police checked the man\'s apartment for explosives, said Cathy Shrock, a department spokeswoman. Caluori, 31, was charged with making threats against the president and assault on a federal officer. He was due in court Wednesday afternoon.