In August 1993, 10-year-old Holly Piirainen took a short walk with her baby brother to admire a litter of puppies playing in a neighbor's yard. Her brother returned home, leaving her alone. Then she disappeared with just a sneaker left behind. Moments earlier, two teen girls, about 200 yards away, felt threatened by a man driving a pickup truck who leered at them.

Today, her case is still unsolved.

After 28 years, new details about her abduction that August has surfaced thanks to new research. Hear what happened that day as our journey to tell Holly's story begins.

Do you have any knowledge about this case, no matter how small? Call the Hampden District Attorney, in Springfield, Massachusetts, at www.hampdenda.com. Or call the State Police Detective U ...