15 Year Old Cheerleader Gabrielle Swainson Missing in Columbia, SC Since August 19, 2012 … Disappeared from Her Bed Room

15 year old  Gabrielle Swainson has been missing from Columbia, South Carolina since August 19, 2012. Gabrielle Swainson  disappeared mysteriously from her bedroom between 3 am and 7 am when her mother was at work. According to accounts, her wallet and cell phone were left behind, and there there was no sign of forced entry at the family’s Richland County, S.C., home. Gabrielle’s mother said that her daughter has never tried to run away and had just made her cheer-leading squad.

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Missing: Gabrielle Swainson

The FBI has joined the search for a 15-year-old girl who disappeared without a trace from her South Carolina bedroom.

Gabrielle Swainson vanished without her purse and identification on Aug. 19, and there was no sign of forced entry at her Richland County, S.C., home.

The teen’s cell phone was missing, but since her disappearance, there has been no activity on it.

“I don’t know what has happened. I don’t know how it happened, and this is really a nightmare,” mother Elvia Swainson told ABC News. “It’s the worst situation a parent could be in.”

Richland County Sheriff Leon Lott has activated his major crimes unit, a team of veteran investigators, replacing the missing persons unit that initially handled the case. He said Wednesday he is highly concerned about the 15-year-old girl’s vanishing with no trace.

Search for missing SC girl grabs national attention.

Gabrielle’s story was featured on Good Morning America on Saturday, and according to Chandra Cleveland-Jennings, a private investigator who has been working with the family, Dateline NBC has contacted her with interest in Gabrielle’s case.

“We need people to keep calling in with tips if they’ve seen her,” Cleveland-Jennings said. “If we can just keep the tips coming in, we have ample resources to follow up on every lead.”

For more updates and to provide your opinions and read others, go to Scared Monkeys Missing persons Forum: Gabrielle Swainson.

Gabbiee Swainson has been missing since early Saturday morning (8/18). Please call 1-888-CRIME-SC or 803-576-3000 or 803-239-8478 if you know anything about her whereabouts.

HELP FIND GABBIE SWAINSON AND SAY A PRAYER FOR HER SAFE RETURN.