A 52-year-old man pleaded not guilty Friday to charges that he threatened to commit a school shooting unless his father gave him money, Essex prosecutors said. Lawrence Beam Jr. of New Durham, N.H., was charged with threatening to commit a crime, intimidation of a witness, threatening to use a firearm, extortion, two counts of criminal harassment, and two counts of making annoying telephone calls at his arraignment in Lawrence District Court, prosecutors said. Beam allegedly demanded $10,000 from his father, and told him that if the money was not provided, the son would shoot up a school, prosecutors said. Authorities did not release the name of the school.

Jacqueline Tempera can be reached at jacqueline.tempera@globe.com. Follow her on twitter @jacktemp.