News stories are some of the best sources for short story ideas. Take this story about an old woman who was swindled out of her home and money yet the very same people took her along when they left. Of course, they eventually abandoned her, but the seeds of a great story are there.
What if the neighbor who reported her missing was a Miss Marple type? What if the kidnapped woman was sharp enough to realize what was going on? And the people who took her were twins with their godson along? Now there's some intriguing possibilities if you wanted to add a little paranormal to your story.
Yep, there are ideas everywhere, you just have to open your imagination.