MECHANICSVILLE, Md. — On Oct. 2, 2025, at approximately 10:17 p.m., deputies from the St. Mary’s County Sheriff’s Office responded to a reported domestic assault involving a knife and alleged strangulation in the area of Golf Course Drive in Mechanicsville. Holly Kathryn Harmon, 38, of Waldorf, was arrested and charged with first-degree assault and second-degree assault.
Upon arrival, deputies made contact with the involved parties and conducted interviews at the scene. According to court documents, Harmon told deputies that she and the victim had been arguing when the victim slammed a door. She stated that after reopening the door, an alleged physical altercation began, during which she claimed the victim placed his hands on her. Harmon stated she then produced a pocketknife and began waving it in the air.
According to court documents, deputies also interviewed the victim, who reported that he was exiting the bathroom when Harmon allegedly began verbally attacking him. He stated that Harmon followed him through the house, yelling and throwing a cup at him. The victim reported that he exited the house into the garage, where Harmon continued to approach him. According to the alleged victim’s account, he extended his arm to keep her at a distance, at which point Harmon reportedly drew a knife and attempted to slash at him.
A witness at the residence reportedly observed the altercation and told deputies she saw Harmon attempting to strike the victim with the knife while the victim restrained her. The witness also stated she attempted to separate the individuals to end the altercation.
According to court documents, no visible injuries were observed on either party. The police report shows that the dispatcher informed officers the caller claimed the knife had been thrown onto the roof of the residence. Harmon was placed under arrest at the scene and transported for processing. Her preliminary hearing is scheduled for Oct. 27, 2025.
Under Maryland law, first-degree assault carries a maximum penalty of 25 years in prison, while second-degree assault carries a maximum penalty of 10 years in prison and/or a fine of up to $5,000.
Got a tip or photo? Text us at 888-871-NEWS (6397) or email news@thebaynet.com.
Join The BayNet Membership for exclusive perks and zero ads.
Don’t miss a story—sign up for our newsletter!
Why the long face?