BOSTON (AP) — Dozens of text messages that a teenage girl sent to her boyfriend that encouraged him to kill himself were just words and do not constitute a crime, her lawyer told the state's highest court Thursday. [...] a prosecutor argued that Michelle Carter pressured Conrad Roy III for weeks to end his life and engaged in "emotional manipulation" of a vulnerable teen who had struggled with depression and previously attempted suicide. The Supreme Judicial Court heard arguments in Carter's appeal of a juvenile court judge's refusal to dismiss the manslaughter charge stemming from Roy's 2014 death. In addition to the many text messages encouraging Roy to kill himself, Stern said, Carter also spoke on the phone with him while he was in his truck inhaling carbon monoxide fumes. Carter was charged as a youthful offender, which makes her eligible for a sentence of up to 20 years in prison if convicted of manslaughter.