A dispatcher for the Rockville, Md., police department apparently received a phone call from the Beltway Sniper two weeks into his murder spree -- and told the caller to hang up and dial another number.
Authorities believe the phone call was made by 17-year-old sniper suspect John Lee Malvo, who is accused with 41-year-old John Muhammad of murdering 12 people in four states and Washington, D.C.
In a tape recording obtained by ABC News, the caller can be heard telling the dispatcher:
"Good morning. Don't say anything, just listen."
"We are the people that are causing the killing in your area. Look on the tarot card. It says, 'Call me God.' Do not release the threat."
"We have called you three times before trying to set up negotiations."
"We've gotten no response. People have died."
At that point, the dispatcher tells the caller there is nothing she can do and tells him to call the hot line set up by the multistate task force investigating the shootings.
Then the caller hangs up.
Neil Greenberger, spokesman for the city of Rockville, said the tape sounds like a call received by a police dispatcher Oct. 15. Greenberger said police gave the tape to the sniper task force, but he did not know if investigators were able to trace it.
Another nine days passed before Muhammad and Malvo were captured Oct. 24 in their car at a rest stop along a Maryland highway.
The two suspects face multiple state and federal counts in the sniper spree in Maryland, Virginia and Washington, D.C, as well as the deaths of two women in Alabama and Louisiana. They are also suspects in a February killing in Washington state.
Meanwhile, police said Friday that a Sept. 14 shooting outside a liquor store has been linked to the sniper suspects, bringing the number of shootings connected to spree to 16.
The September 14 shooting of liquor store employee happened more than two weeks before the sniper shootings began in the Washington area.
Rupinder Oberoi, 22, was injured after being shot at the Hillandale Beer and Wine in Silver Spring, Md. He spent a week in the hospital before being released and is expected to fully recover.
Ballistics tests on a bullet fragment was inconclusive. Police spokesman Derek Baliles says the sniper task force officially linked the shooting based on "similarity of circumstances, witness information and evidence that confirms the vehicle was in the Washington metropolitan area on the day of the shooting."
Baliles was referring to the 1990 Chevrolet Caprice in which the two sniper suspects were arrested.
On Thursday, Louisiana officials said ballistic tests had linked Muhammad and Malvo to the Sept. 23 murder of a beauty shop worker. The pair are also accused of killing one woman and wounding another outside a liquor store in Montgomery, Ala., two days before the Louisiana shooting.
Also Thursday, Alabama authorities said the same rifle used in the sniper shootings, a .223-caliber Bushmaster, had been linked to the Montgomery case.
The suspects have been in custody in Maryland since they were captured at a highway rest stop Oct. 24. Authorities found the rifle in their car, which they say was modified so someone could fire unseen through a hole in the trunk.
The Associated Press contributed to this report.