Taunton, Massachusetts (CNN) On the last day of Conrad Roy III's young life, the text messages popped up on his phone, one after another. "You need to do it, Conrad." "You can't think about it, you just have to do it." "Are you going to do it today?" The sender of the messages, authorities say, was his 17-year-old girlfriend, Michelle Carter. The "it" was suicide. Prosecutors argue that the texts are overwhelming evidence that while Carter played the role of a loving girlfriend, she was secretly urging Roy to kill himself. The next day, in July 2014, Roy's body was found slumped in his black Ford F-150, dead from carbon monoxide poisoning. He was 18.Teen encouraged boyfriend to commit suicide, prosecutor saysMichelle Carter, now 20, is being tried by a judge in a Massachusetts courtroom
The day before, authorities say, _ had urged him to go through with his plan to commit suicide. Her son never talked about _ and she rarely saw them together, she said.