An East Texas man is behind bars after authorities said he attacked a Harrison County sheriff’s investigator in the officer’s own home Tuesday.

Harrison County Sheriff’s Office (HCSO) received a call around 8:45 p.m. Tuesday reporting that Jerry Guilliams, 43, of Marshall, attacked the off-duty investigator at his residence. HCSO withheld the investigator’s name and address for his family’s safety.

When deputies arrived at the home, they found that the investigator had handcuffed Guilliams after the alleged altercation. Investigation revealed Guilliams apparently walked onto the investigator’s property and demanded to speak with him. He then threatened the investigator, deputies say, and became belligerent.

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Despite being told multiple times to leave the investigator’s property, Guilliams refused, an HCSO press release reads. As the investigator tried to detain Guilliams, he allegedly attacked him.

The investigator had to use force to restrain Guilliams successfully, and once he was restrained, the pair waited for a patrol unit to arrive, per the statement.

This was not the first time the two men had interacted, but it was the first time an encounter turned violent, the sheriff’s office said.

Investigation into this altercation is ongoing.

There is no word yet on what may have provoked Guilliams to target law enforcement. Guilliams is charged with criminal trespass, assault on a public servant, and obstruction or retaliation.

Harrison County Sheriff Brandon Fletcher said in a statement: “Today’s law enforcement has enough stress while on duty. To have it continue at home is repulsive. This individual didn’t show up at this Investigator’s home with his family present; for who he is as a person, he showed up for what he represents. This is an example of the continued sacrifices Peace Officers and their families make every day.”