A Massachusetts woman who sent her suicidal boyfriend a barrage of text messages urging him to kill himself was jailed Monday on an involuntary manslaughter conviction nearly five years after he died in a truck filled with toxic gas.

Michelle Carter was sentenced to 15 months in jail in 2017 for her role in the death of Conrad Roy III, but the judge allowed her to remain free while she appealed in state court. Massachusetts’ highest court upheld her conviction last week, saying her actions caused Roy’s death.

Read more at Associated Press News.