Silver pendant necklace with star charm found

I found a silver pendant necklace this afternoon around 3:15pm on Court Street in Cambridge, right outside the Cambridge City Park gate near the old post office building. It's an 18-inch sterling silver chain with a star pendant about 1 inch across. The back is engraved with the initials 'JS' and there's a tiny heart-shaped cutout in the star; the chain shows a little tarnish but otherwise in good condition. I know it probably has sentimental value, and I’d really like to see it go back to its owner—if this sounds like yours, drop me a note and we’ll figure out a safe way to get it back.