Mom files $4.2M suit against woman in texting suicide case

With her defense attorney Joseph Cataldo at left, Michelle Carter listens to her sentencing for involuntary manslaughter for encouraging 18-year-old Conrad Roy III to kill himself in July 2014. Thursday, Aug. 3, 2017. She was sentenced Thursday to 15 months in jail for involuntary manslaughter. (Matt West/The Boston Herald via AP, Pool)

DEDHAM, Mass. (AP) — The mother of a teenager who killed himself has filed a wrongful death lawsuit against a Massachusetts woman convicted of manslaughter for encouraging him to take his own life.

Lynn Roy is seeking $4.2 million in lost future wages for her son Conrad Roy III. The lawsuit was filed against Michelle Carter last month in Norfolk Superior Court on behalf of her son’s estate.

Woman who sent texts urging suicide gets 15 months in jail

Roy was 18 when he died of carbon monoxide poisoning in 2014. The then-17-year-old Carter initially tried to talk Roy out of killing himself, but later urged him to do it through dozens of text messages.

Carter was sentenced Thursday to 15 months in jail.

Carter’s lawyer argued that Roy was determined to take his own life and that Carter didn’t cause his death.

In this June 7, 2014 photo provided by his grandmother Janice Roy, Conrad Roy III celebrates his high school graduation Old Rochester Regional High School in Mattapoisett, Mass. He killed himself the following month. (Janice Roy via AP)