Grey tabby cat with orange collar, lost near Market Street

I lost my grey tabby cat yesterday around 3pm in the Parkersburg-Marietta area, last seen near the Parkersburg Library on Market Street. He's medium-sized, with a white heart-shaped patch on his chest and a tiny notch in his left ear, and he wears an orange collar with a small silver bell and a tag that reads 'Niko'. This cat means a lot to us—my daughter is really worried, and we've had him for over two years. If you spot him around Riverfront Park, along Market Street, or anywhere in town, please drop a note here so I can come get him.