A single mother who volunteered to search for missing children and adults has vanished without a trace.
Andrea Knabel, 37, was last seen two weeks ago, walking in the early morning hours of Aug. 13, according to a "Finding Andrea" Facebook page established to organize searches for her.
Knabel has two sons, ages 5 and 8, who "need her home," said a post on the site.
She was upset when she left her mother's home in Louisville, Kentucky, about 1 a.m. and had phoned someone for a ride, private investigator Tracy Leonard, who is helping in the search, told the Louisville Courier-Journal.
Since then, her phone has been turned off and calls go directly to voicemail, he said. Search parties are combing the area where she had been walking.
Knabel, who volunteered with Missing in America, a nationwide group that helps search for people who have disappeared, had recently fallen on hard times. She was laid off from her job and lost her car when it was totaled by a hit-and-run driver, her friends said.
The woman would not just vanish without saying a word, according to her family and friends. They have no idea, they said, what happened to her, but that she had been struggling emotionally with all that had happened to her.
"Andrea is not only a member, she has searched for a lot of missing people. She's also a very good friend," said Nancy Schaefer, the organization's founder, on "Finding Andrea."
She is the first member of the group to have gone missing.
Knabel is 5 feet, 7 inches tall, has light brown hair and weighs about 190 pounds. Anyone who has seen her or has information about her whereabouts is asked to call the Louisville Metro Police Department's tip line at 502-572-5673.