Mystery Surrounds Death of U.S. Solider

"We keep being told it takes time, and while we understand and appreciate that, we are desperate for information," sister Diedre Durkin said.

Ciara's brother Pierce Durkin said she sounded heartbreakingly upbeat on the day she died. It was his birthday and she left him a voice mail.

"I had just missed her call and she said 'Hey Lorbell, I love you very much, I can't wait to see you,' and then she started singing 'Happy Birthday,'" he said.

Pierce said that an autopsy has been done and that results will be delivered Friday. He added that the family plans to commission an independent autopsy.