Meanwhile, law enforcement sources said a hand-written note found near the scene of Saturday's sniper shooting in Virginia "hinted at a demand for money" and threatened "more killing." One official said it contained a timeline for authorities to act, and if they failed, then there would be more attacks.
CNN initially withheld that information at the request of law enforcement officials, who feared that releasing it could jeopardize the investigation and put the community at risk. However, after several other news organizations reported the information, the officials said they had no objection to CNN reporting it.
The note is undergoing analysis at an FBI lab for DNA, handwriting and other details that might help determine who wrote it. Sources said authorities were working under the assumption that it is from the sniper.
Investigators believe the sniper called authorities Monday morning using a voice-disguising device, a source close to the investigation told CNN.
It was that phone call, this source said, that prompted Moose to urge the possible sniper to "call us back."
Attorney General John Ashcroft said Tuesday he did not foresee the FBI taking over the sniper investigation, but he did not rule out the possibility.