A 19-year-old is facing federal charges after allegedly repeatedly threatening the community of Uvalde, Texas, in the year following the Robb Elementary School massacre, the Department of Justice announced Thursday.

Victoria Gabriela Rodrguez-Morales was arrested in Puerto Rico last week and has been charged with 13 counts of making threats using interstate communications toward people and institutions in Uvalde between May and October.

According to an arrest affidavit obtained by HuffPost, Rodrguez-Morales, a former Uvalde resident, used her mothers and other relatives phones to repeatedly call and send threatening emails to a number of Uvalde public institutions, including schools, hospitals and the police department.

Rodrguez-Morales also claimed in some online comments that she had been in a romantic relationship with the 18-year-old gunman who killed 19 students and two teachers at the Uvalde school on May 24, 2022, though their relationship has not been confirmed. The gunman was killed by a law enforcement officer at the school.

Making threats of violence to schools and other public institutions is a federal crime, Joseph Gonzlez, special agent in charge of the FBI San Juan Field Office, said in a Justice Department statement. School shootings are one of the most heinous of violent acts, and those impacted by this tragedy, such as the family, friends and co-workers of the victims of the Uvalde school shooting, deserve to grieve and process their experiences in peace.