Updated 3:08 a.m. Friday with additional details.
The San Diego County Sheriff's Department was investigating a possible sighting of cop killer suspect Christopher Dorner at a home near the Barona Indian Reservation early Friday morning, but officials doubted the tip was legitimate.
Just after 10 p.m. Thursday, a person called 911 to report seeing someone matching Dorner's description at the home on Ketuull Uunyaa Way off of Wildcat Canyon Road in the Lakeside/Ramona area, Lt. Jason Rothlein said.
Deputies were having a hard time confirming the tip and were still on scene investigating after 3 a.m. Friday doing "due diligence," Rothlein said.
"We don't have any confirmation that the caller did actually see him," Rothlein said, adding that there have been many sightings reported.
Later, Rothlein said "all indications are that [the tip] is no good." After talking to people at the scene, officials could not find anybody by the name of the reporting party or anyone matching Dorner's description, he said.
"We don't have any information to substantiate the legitimacy of the initial call. ...At this point, it doesn't look like Dorner was ever there. The legitmacy of the call is in question," he said.
Los Angeles police officers, reportedly thinking they had come upon Dorner's vehicle in Torrance, shot two women delivering newspapers Thursday, according to the L.A. Times.
Dorner has been the target of a multi-state manhunt since he allegedly shot and killed an Irvine couple on Sunday and a Riverside police officer on Thursday. Dorner is a former LAPD officer who is believed to be targeting law enforcement officials and their families in response to being fired from the LAPD for allegedly making false statements.
His wallet was found along Harbor Drive in San Diego early Thursday, and he reportedly checked into a Point Loma hotel on Tuesday, officials said. Late Thursday, investigators looked into a truck at the Poway Sheriff's Station from which Dorner might have stolen the license plate to use on his own vehicle, an official said.
Check back for updates.