JTA – A woman wielding a knife reportedly was arrested after threatening a student of the Toulouse Jewish school where an Islamist radical murdered a rabbi and three children nearly one year ago.

According to Le Depeche, a French news site, the 51-year-old woman was arrested on February 5 outside the Ohr HaTorah school after she brandished the knife in a threatening manner in front of a 16-year-old boy exiting the institution. He returned to the school and told authorities about the women, who was arrested shortly thereafter.

According to Direct Matin, a news website and daily newspaper, the woman shouted anti-Semitic slogans and “appeared mentally unstable.”

On March 19, 2012 Mohammed Merah, a 23-year-old Jihadist fanatic, gunned down Rabbi Jonathan Sandler, 30, along with his two young sons, Aryeh and Gavriel. He also killed Miriam Monsonego, the 8-year-old daughter of Yaacov Monsonego, director of the Ozar HaTorah school, which has since changed its name to Ohr HaTorah.

Merah was killed two days later by French police while trying to escape a police raid on his home. Last week French police arrested two of his acquaintances on suspicion they were involved in that shooting and Merah’s earlier slaying of three French soldiers, but they were released after a few days.