(WPXI) – A high-profile mystery in Butler County remains unsolved years after 8-year-old Cherrie Mahan vanished. Janice McKinney is still haunted by unanswered questions about what happened to her little girl 40 years ago Saturday. “Nobody understands how much I would love to have my daughter back in my life,” McKinney said. On February 22, 1985, Cherrie mysteriously disappeared near her home in rural Butler County after getting off the school bus. There’s been no trace of the 8-year-old ever since. After four decades of exhaustive searches, tips and leads turned up empty, Cherrie’s mom has never given up hope. “Never, ever,” McKinney said. “Not until I have a bag of bones, not until I have that child standing in front of me. And I know that she’s not a child but until I know for sure, I’m never giving up. Friends, family and even strangers packed the VFW in Saxonburg Saturday to try to breathe new life into a case that’s gone cold. Trooper Jim Long with Pennsylvania State Police said they’re still actively investigating every lead they get. “It’s been decades, so the information that we have, a lot of it is the same information we’ve had before – misidentification of vehicles, things like that, so the more time passes the more difficult it gets.” State police said there is nothing new in the case. They are asking anyone with information on Cherrie’s disappearance to call PSP Butler at 724-284-8100.