CHURCHTON, Md. - A Maryland man who plunged a semen-filled syringe into a woman in an Anne Arundel County grocery store is headed to prison.Download the FOX 5 DC News App for Local Breaking News and WeatherThomas Bryon Stemen was sentenced to 10 years in prison for first and second-degree assault.He pleaded guilty in June.READ MORE: Substance used in Maryland syringe attack was semen, police sayStemen attacked Katie Peters in February at Christopher's Fine Foods on Shady Side Road in Churchton.The incident was caught on surveillance video.Exclusive Interview: Maryland syringe attack victim describes moment she was stabbedAccording to investigators, Stemen tried to attack two other people before Peters.AdvertisementStemen had recently moved.