Woman Is Sentenced For Making Threats

The Kalchbrenner boys are 1 and 3. Altieri and her husband have 3-year-old twins, a boy and a girl.

Deputy Chief Commonwealth's Attorney Theo Stamos said Altieri sent the letters, in which she said "knives were to be used," after she discovered Meagan Kalchbrenner in the Mothers of North Arlington group. Stamos said both women were members of the online chat group, through which mothers trade child-rearing techniques and parenting stories.

Stamos said that during a chat session, Altieri noticed Meagan Kalchbrenner's name. Soon afterward, she began sending the letters. The first letter arrived in June, Stamos said.

Paul Kalchbrenner said the anonymous letters "came out of the blue." He said that he and his wife, who used to teach kindergarten at Nottingham Elementary School in North Arlington, went to the police, whose investigation led to Altieri.

"I've had no contact with her for the past five years and very little contact since the divorce," said Paul Kalchbrenner, a lawyer. He said he had "no understanding" of why she sent the letters. "I don't know what's going on with her," he said. "She's pretty sick."

In an affidavit for a warrant to search Altieri's husband's car, police said they were looking for information about Kalchbrenner, his wife or the Kalchbrenner children; any photo, drawing or literature relating to torture, bondage and sexual abuse crimes; and writing samples from Altieri. No evidence was seized in the search, records show.

Court records indicate that police also obtained a warrant, which has remained sealed, to search Altieri's home in North Arlington.