A 39-year-old woman was sentenced Thursday to three years and eight months in prison for sending threatening letters to a Glendora Catholic school while posing as a student.
Magaly Esmeralda Alvarenga pleaded no contest in June to two counts of criminal threats and one count of stalking.
According to prosecutors, Alvarenga sent the threatening letters to St. Lucy’s Priory High School between December and May, signing them with a student’s initials. Two additional letters she sent in May contained white powder and drugs, prosecutors said.
The stalking charged involved a female student at the school, according to the District Attorney’s Office.
Alvarenga was arrested May 24 by Glendora police.
It was unclear what motivated her to make the threats.
Glendora police said in January the school had received a letter from a person threatening to burn down the campus and shoot people. Police said the author “expressed concern with strict school rules along with their stresses of high school academic life.”