Sonia Hartner has been located safe according to Internet users who know the young teenager.
https://www.facebook.com/?ref=logo#!/FindSoniaHartner
Hello everyone! UPDATE:
SONIA WAS SPOTTED IN FAYETTEVILLE, NORTH CAROLINA THIS MORNING!! SHE IS ALIVE AND PRESUMABLY WELL.
IF ANYONE HAS ANYMORE INFORMATION ON HER WHEREABOUTS OR HAS BEEN IN CONTACT WITH HER, PLEASE CONTACT THE ASCENSION PARISH POLICE DEPARTMENT AT (225) 621 8340.
THANK YOU ALL SO MUCH FOR YOUR CONCERN AND WELL WISHES. HER FAMILY REALLY APPRECIATES YOU ALL.
This update was on the find Sonia FB page.
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8/23/2012 Louisiana
→ Sonia has been missing since Wednesday, 8/15/2012. Family and friends are worried and any information about her whereabouts is appreciated.
Endangered Missing Sonia Hartner August 23rd, 2012
Gonzales, La. —

There are new important details about the missing Sonia Hartner that have come out to help in the search.

She was last seen on Aug. 15 driving a newer-model silver Impala.  She may be in New Orleans, Baton Rouge or the surrounding areas.

Sonia is 5’4, 110 ibs with no scars or tattoos, and she has a beauty mark on her right cheek.

If you have any information, call the Ascension parish Sheriff at (225) 621-8340.

The username ”Laurvelous” from websleuth’s, (a missing persons website) left this message: ”My friend’s sister Sonia has not had any contact with her family for roughly one
week. They are getting very worried. She was last seen in Prairieville, LA
(about 15-20 miles west of Baton Rouge and 40-ish miles east of New Orleans) in
a white Chevy, I think maybe a truck? As I get more details, I will update here
but please keep a look out for this girl and if you see her, I will get you in
touch with the proper person to contact once I know more.”

SOURCE: http://www.websleuths.com/forums/showthread.php?p=8289274