CARROLL COUNTY, Md. (WUSA) - Thursday will mark the one-year anniversary of the disappearance of 35-year-old Robyn Gardner of Frederick, Md.

She was last seen vacationing in Aruba with Gary Giordano, a Gaithersburg man who was held for months in an Aruban jail, but was released in November 2011 for lack of evidence.

On Tuesday afternoon, Gardner's sister spoke with Andrea McCarren for the first time. Gardner's family is convinced Robyn is still alive. And it wants the FBI and Aruban authorities to continue their investigation.

"My brother and I believe she's still alive and we want to keep hope out there and we're waiting for her when she comes home." said her sister, about Robyn, missing in Aruba since August 2 of last year.

When we asked, "Had you heard the name Gary Giordano before?," she replied, "Never."

Danielle Colson-Unglesbee wouldn't comment any further on the man who reported Robyn missing. Nor would she address his efforts to claim a $3.5 million life insurance policy purchased before last summer's trip.

"Sometimes you go to public places and you see a beautiful young woman with long blond hair and it conjures up all the memories. Of Robyn," she said.

Robyn's sister is haunted by the disappearance, and hopes to travel to Aruba some day and try to make sense of the unthinkable.

"I would really love to go there. I would like to see the terrain there, get a sense of everything. I would like to see the restaurant that she was last seen at. I would like to see the hotel she stayed at," she said.

For now, the family wants everyone to remember the fun-loving, spontaneous woman behind the smiling photographs.

"She's a wonderful woman and I wish everyone could know her and I'm waiting for her and I love her," said Robyn's sister.

Wednesday evening, Robyn Gardner's family and friends will gather in Frederick to remember her, as they continue to hold out hope for her safe return.

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