The investigation into a threatening e-mail sent New Year's Eve to the White House from Carson City has been closed with no arrests made and no suspect identified, authorities confirmed Friday.
Officials with the FBI and the state Department of Public Safety tracked the e-mail to a computer used by the public, said Agent Todd Palmer, an FBI spokesman in Las Vegas. But authorities weren't able to determine who used the computer in a Carson City retail business.
"It was a threat, but it wasn't imminent. It wasn't actionable. It wasn't credible," said Jerry Bussell, state homeland security adviser to Gov. Kenny Guinn, who revealed the threat during a speech Jan. 15 in Las Vegas.
Nevada officials weren't informed of the e-mail until several days after it was sent, and by then threats made concerning New Year's Eve events had passed, Bussell said.
An annual New Year's Eve celebration on the Las Vegas Strip saw unprecedented security, from military helicopters hovering overhead to police snipers on hotel rooftops. Federal officials had raised the national terror alert level in the weeks before the holiday after intelligence reports suggested a possible attack.
"Although it was a public threat, it did not compromise the safety of Nevada officials or any establishment," Bussell said. "We've investigated it as far as we can, and it seems there is no reason to continue."
The text of the e-mail has not been disclosed, although the governor's spokesman Greg Bortolin said it mentioned Carson City and Las Vegas and threatened "the leader of Nevada." He said the author of the brief e-mail used broken English.
"I'm just thankful there was nothing to this, nothing came of this, and just chalk it up to an irresponsible act," Bortolin said.
Even though the e-mail was not received until after the threat had passed, Bussell said authorities still needed to investigate.
"If you make a threat, we're going to investigate it," he said. "We don't pick or chose which threats to investigate."