Police have not speculated on the cause of Bechen's disappearance, although the possibilities most often discussed are that she was abducted, she was injured while riding an unable to seek help or she ran away, either alone or with someone else.
Christy said police continue to look into "every single one" of the tips that comes in.
Family and friends have set up a reward fund under an account at Community Bank of Greensboro to try to encourage someone with any information about the girl's disappearance to come forward. Anyone wishing to donate funds to a reward can do so at any Community Bank branch under the name "Gabrielle M. Bechen Donation Fund."
According to Dennis Chaney, logistics chief of the search and rescue team, there were between 110 and 120 searchers on the scene Friday. Chaney said a mile radius from the Bechen home was thoroughly searched, with no trace of the girl. The search continues, however, and the area being searched continues to expand.
Although the ATV Bechen was riding was relatively small and has a gasoline tank of a little more than a gallon, Christy said the number of ATVs in the area meant it would not be hard for her to find more gas if she needed to refuel.
"We're not going to say this can only go so far," Christy said. "We're not going to limit our search."
A call has been put out for additional search and rescue teams from the all along the Eastern Seaboard, Chaney said. Officials said more than 200 emergency personnel from more than five states and dozens of additional volunteers on ATVs and two helicopters equipped with thermal-imaging cameras also were searching for Bechen.
Lorrie Pitek of North Strabane Township, Washington County, was among those searching the heavy underbrush on foot Friday. She is a volunteer for the Red Cross but came to search for Bechen on her own accord.
"How could you not?" she said. "I have children of my own, if one of them were missing, I'd want someone to help find them alive."
On Wednesday, Bechen's father, Christopher Bechen, made a plea for his daughter's return, stating that she would not be in trouble if she had wandered off and to "please call home."
Her mother, Blanche Bechen, said Gabrielle often rides the ATV around the family home but never on wooded trails by herself.
On Thursday, the hard drive of the family's computer was seized from the home by investigators, but no new leads resulted.
As of press time, the girl has been missing for almost five days and searches continue on both foot and on ATVs under increasingly hot weather.
"We feel we need to bring this to some sort of conclusion," Christy said. "She is somewhere and until we can locate her we're going to continue looking."
Anyone with information regarding Bechen's whereabouts is asked to call state police at 724-627-6151.
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