Grafton police say seven teenagers have been accused of harassing a 15-year-old victim of a violent crime and were arrested on felony witness intimidation charges.
   Police Chief Normand Crepeau says that on Jan. 18, the victim’s mother said her child was threatened and demeaned by several acquaintances of a person charged with committing a violent crime against the child last year.
   She said her child had been repeatedly harassed physically and through social media at school and elsewhere.
   Crepeau would not give details about the violent crime.
   Joseph Todisco of South Grafton, Anthony Masterson of Grafton and Daniel Guzetti of North Grafton were each with witness intimidation.
   Police withheld the names of the four juveniles who were arrested.
   It was not known Sunday if they are represented by lawyers.

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