Maryland man whose attack on a woman with a semen-filled syringe was caught on camera sentenced to 10 years
- A man was sentenced to 10 years in prison for stabbing a woman with a semen-filled syringe.
- The man was also convicted of second-degree assault for making contact with a 17-year-old girl in the same supermarket.
- Inside the man’s house, there were other semen syringes.
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.

Thomas Stemen, 52, who stabbed a woman with what was likely a semen-filled syringe last year was sentenced last Tuesday, The Washington Post reported.

An Anne Arundel County Circuit Court judge sentenced the man for the assault that took place in a grocery story. In February 2020, surveillance video showed the man creeping behind a young woman after she was returning a shopping cart at a local grocery store at Christopher’s Fine Foods. Stemen then bumped up against the woman and stabbed her.
The victim’s name is Katie Peters.
Stemen was also convicted of second-degree assault for making contact with a 17-year-old girl in the same supermarket, but he was unsuccessful in injecting her. Stemen was sentenced to five years of probation for that conviction.
Initially, Peters thought that Stemen assaulted her with a lit cigarette, but as soon as she got home and noticed a red spot it was apparent that she injected her.
“I knocked whatever was behind me,” Peters said, according to The Washington Post. Peters then yelled at the man and asked if he burned her with a cigarette.
“Ya, it felt like a bee sting, didn’t it?” the man responded.
Stemen initially entered an Alford plea, according to The Post, enabling him to plead guilty without admitting he committed a crime.
Doctors prescribed Peters a 30-day mix of preventive medication as she did not know what she got stabbed with, but she said it felt like “rat poison.”
Police searched Stemen’s home and vehicle, and found similar syringes were filled with semen.
Police obtained the syringes and sent them to a crime lab for DNA testing, finding out later that the substance matched Stemen’s DNA.
“You’re not going to do this to me or the young people in my community and get away with it,” Peters said. “It’s just not going to happen.”


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Maryland man whose attack on a woman with a semen-filled syringe was caught on camera sentenced to 10 years









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