FBI on Greeley missing girl: 'We have to assume the worst'
GREELEY, Colo. - Greeley Police and the FBI held a joint news conference Friday afternoon, pleading for additional tips to help solve the disappearance of 12-year-old Kayleah Wilson.

Wilson was last seen at her Greeley home Sunday afternoon when she left to walk to a friend's house for a birthday party.

She never got there.

"If anyone has seen anything...please share that information with us," Greeley Police Sgt. Joe Tymkowych said. "It's kind of like when you pass by an accident and you assume someone has called (it) in...but maybe nobody has."

The Federal Bureau of Investigation said authorities have received -to date- over 100 tips. However, FBI Special Agent Jim Davis would not provide any specifics as to whether they indicate Kayleah left on her own, or fell victim to foul play.

"We have to assume the worst. That is our job," Davis said. "We assume the worst and hope for the best, and that's how we're proceeding with the investigation."

"There is no higher priority in the Denver division of the FBI."

Police say the route Kayleah was expected to take to the party, along US Highway 34, would have put her in plain site of drivers. They are asking for anyone who might remember seeing her to call police.

On Thursday, Kayleah's stepfather raised the possibility that she ran off to California to be with her biological father. On Friday, however, the FBI said that did not appear to be the case.

"We interviewed the father and we're confident she's not with him in California," Davis said. "However, we have not washed out the possibility that she has left on her own."

Police say Kayleah was last seen wearing a white and pink shirt over a white tank top, blue jeans and white and red shoes. She's described as 5'1", 145 lbs., brown eyes and brown hair.

Also Friday, authorities displayed a red inhaler Kayleah, who suffers from asthma, took with her to the party with the hope that -if discovered- it could provide an important clue as to her whereabouts.

An AMBER Alert has not been issued in this case because Kayleah's disappearance does not yet meet the criteria. AMBER Alerts for missing children were created after 9-year-old Amber Hagerman was kidnapped and killed in Texas in 1996.

Anyone with information about Kayleah's disappearance can call the Greeley Police Department at (970) 350-9600 or the FBI's anonymous tip line, 1-800-CALL-FBI.