Missing in America, a group that helps find missing people across the country, is for the first time searching for one of its own members. Andrea Knabel, a volunteer in Kentucky, was upset when she left her sister's house in Louisville's Audubon Park neighborhood around 1am on Aug. 13, reports CBS News. The 37-year-old single mother of two—last seen walking in the direction of her mother's house, roughly a half-mile away—was going through a tough time, having recently lost her job. Her car was also destroyed in a hit-and-run accident, per the Courier Journal, which reports she called a friend to ask about a ride. Investigator Tracy Leonard tells NBC News that Knabel made several calls between 1:30am and 2am, but her phone has been inactive since then.
Leonard says the "very well-liked young lady … was pretty upset, pretty wound up" when she departed her sister's house, though he doesn't explain why. "My life won't be the same until she's back," sister Erin tells NBC. She says she doesn't know of anyone who would want to hurt her sister, but describes her as "caring and thoughtful to others to a fault." Missing in America founder Nancy Schaefer Smith notes Knabel "has searched for a lot of missing people" but is the first of the group's members to go missing herself. "I'm not going to stop looking for her," she says. "She's one of our own." The mother of two boys, aged 6 and 8, is described as white, 5'7", 190 pounds, with light brown hair. She was last seen in white shorts and a light-colored tank top. (Read more missing person stories.)