Montgomery County Police Chief Charles A. Moose disclosed what could be the second known communication between the sniper and authorities, while using a hastily scheduled news conference to respond to the message directly.
The cryptic reply came as authorities worked to link Saturday's shooting in the restaurant parking lot to other attacks that have killed nine people and wounded two since Oct. 2. The unidentified victim in the most recent attack was in critical condition after surgery last night at a Richmond hospital, where a key piece of evidence - the bullet - was removed from his chest.
Police said they would not be able to say conclusively whether the attack is linked to the earlier shootings until they are able to examine the bullet. But investigators were acting on the assumption that it is, and they conducted a painstaking search of the Ashland crime scene, including a nearby wooded area where witnesses said the shot came from.
What appeared to be the most significant new clue also was the most mysterious.
Law enforcement sources said last night that investigators believe the message came from the sniper, offering police their first chance to make contact. However, authorities refused to answer any questions about the tantalizing message.
Moose said only that he wanted the media to broadcast the message. "Carry it clearly and carry it often," he said.
It was unclear last night whether the message to authorities came in a phone call or a written note, or exactly where it was found. Moose's appeal for a call to police raised the possibility that the phone number in the message was for a phone booth or a third party.
But the communication could offer a breakthrough for police, who have been frustrated for more than two weeks as the sniper has slipped through extensive dragnets and traffic searches. Until last night, the only apparent message from the shooter came on a tarot Death card left Oct. 7 outside a Bowie middle school where a 13-year- old boy was shot and wounded.
That message, which police have refused to discuss, reportedly said: Dear Policeman: I am God.
Brian H. Levin, a criminal justice professor at California State University, San Bernardino said that if the new message is another communication from the sniper, it would offer authorities an important chance to make contact with the man they want to catch.
Any dialogue with the elusive shooter would allow authorities to learn more about his state of mind and location, Levin said. It also would provide him with another method - besides killing - to communicate his message.
"Part of what he wants is respect. He's someone who feels that he plays by the rules and he didn't get the proper recognition, and this is his time," Levin said. "He might want to generate respect or he might want to ratchet it up another level - that he is so smart that he can talk directly to the police."
James Alan Fox, a criminal justice professor at Northeastern University in Boston, said serial killers often send messages as they begin to feel comfortable. But he said those messages typically do not allow police to solve a case.
"Maybe he wants to say something more than just, 'I'm God,' but he probably doesn't want to say, 'I'm at such and such address, come get me,'" Fox said. "It's a possible message from the perpetrator that could be of no value whatsoever except to make the shooter feel better."
Saturday's shooting - if linked to the other sniper attacks - would mark the first weekend incident and would be the farthest from Washington, shattering the relative security of many who live far from the Capital Beltway.
Although witnesses in Ashland said they heard the shot and saw the victim fall, no one reported seeing the shooter or described a getaway vehicle. Investigators were tight-lipped throughout the day.
"We're following up on all leads at this time," said Col. Stuart V. Cook of the Hanover County sheriff's office. "They are numerous, and we hope they will continue. ... We will not discuss what has been found, what has not been found."