A court has upheld a judge’s ruling in the case of a Massachusetts teen who coerced her boyfriend to commit suicide.

Michelle Carter was convicted in 2017 of involuntary manslaughter after prosecutors showed that she sent her suicidal boyfriend, Conrad Roy, text messages encouraging him to go through with his planned suicide in 2014, when he died of carbon monoxide poisoning in a parking lot in Fairhaven, Massachusetts. Rather than call 911 to report the imminent suicide, Carter texted Roy to “get back in” his truck. Both Carter and Roy were 17 at the time.

In October, Carter’s attorneys filed a motion to dismiss the case and the conviction, arguing that Carter was not responsible for Roy’s suicide.

“We can all see from the text messages that Michelle Carter did not force Conrad Roy to kill himself,” Carter’s lawyer Daniel Mark reportedly told the Massachusetts Supreme Judicial Court in October. “It was a tragic decision that he made.”

On Wednesday, the court ruled to uphold Carter’s conviction and 15-month sentence, according to NBC News, which obtained the high court opinion.

“The evidence against the defendant proved that, by her wanton or reckless conduct, she caused the victim’s death by suicide,” the opinion read.

“Her conviction of involuntary manslaughter as a youthful offender is not legally or constitutionally infirm. The judgment is therefore affirmed.”

It is not yet known when Carter is expected to begin serving her sentence, which had been placed on hold pending the court’s ruling.

If you or someone you know is in a crisis and needs help, please call the National Suicide Prevention hotline right away at 1-800-273-8255.

[Feature image: Michelle Carter, right, seated with her attorney Cory Madera, as she hears the judge’s ruling on Friday, June 16, 2017, in Bristol Juvenile Court in Taunton, Mass. (Glenn C.Silva/Fairhaven Neighborhood News, Pool via AP)]