A Michigan boy uses a slingshot from his bedroom window to save his sister from an alleged kidnapper that according to police. Hear about it at Urban Legends and Stranger truths. A teenage boy helped save his younger sister from an alleged kidnapper by shooting that suspect with his slingshot. That according to Michigan authorities. The eight year old girl was mushroom hunting in her own backyard in Alpena Township on Wednesday when, quote, an unknown male appeared from the woods. End quote