The 22-year-old was taken into custody on Monday after a top court last week upheld her manslaughter conviction in the 18-year-old's death.
An attorney for Carter told the Washington Post they would consider appealing the case to the U.S. Supreme Court. And earlier Monday, the Massachusetts Supreme Court rejected Carter's emergency motion seeking to delay the sentence from being imposed.
ASSOCIATED PRESS Becky Maki, aunt of texting suicide victim Conrad Roy III, is emotional as she faces reporters outside Taunton District Court, in Taunton, Mass., following a hearing Monday, Feb. 11, 2019 where defendant Michelle Carter's 15-month prison term was upheld.
The juvenile court judge focused his guilty verdict on the fact that Carter told Mr Roy over the phone to take actions which led to his death.
According to Xinhua News Agency, local (US) media reported Monday that Michelle Carter, 22, was convicted of involuntary manslaughter and sentenced to 15 months in prison in 2017.
The Massachusetts Supreme Judicial Court upheld her conviction and said her actions killed Conrad Roy III, who was her boyfriend when he killed himself in 2014. Carter "downplayed" Roy's fears about how his death by suicide would affect his family, the judges said, and "repeatedly chastised him for his indecision". Their relationship consisted mainly of texting and other electronic communications. "You just have to do it", Michelle Carter wrote".
An attorney for Carter vowed to continue to appeal.
Her case garnered worldwide attention and provided a disturbing look at teenage depression and suicide.
Prosecutors argued that Carter listened over the phone as Roy suffocated from carbon monoxide inhalation in his pickup truck and failed to notify his parents or authorities when he died.
Carter and Roy both lived in MA but met in Florida in 2012 while both were on vacation with their families. No more pain. It's okay to be scared and it's normal.
"After she convinced him to get back into the carbon monoxide-filled truck, she did absolutely nothing to help him", Kafker went on.
In the February 6 ruling, the state's highest court ruled that Carter "helped plan how, where, and when" Roy would kill himself. They also argued there wasn't enough evidence to prove that Carter told Roy to get back in his truck. "We are disappointed in the Court's decision, which adopts a narrative that we do not believe the evidence supports", Daniel Marx said in a statement, adding that the decision has "troubling implications, for free speech, due process, and the exercise of prosecutorial discretion".