A teen from Massachusetts supported her boyfriend's decision of killing himself and convinced him through text messages saying things like his death will not contribute to his parents emotional distress, according to court documents, People reported.

Since the boy's suicide,18-year-old Michelle Carter has been charged with involuntary manslaughter. Conrad Roy III, 18, committed suicide through carbon monoxide poisoning that was induced with a water pump powered with gas in his vehicle. Carter's lawyer wanted to dismiss the charges towards the teenage girl which led the Bristol County District Attorney's office to release the exchange of messages between the couple.

Carter was the one to push Roy to go through the act and even searched for techniques on how to die without pain. She lied to police, his family and their friends about his situation during his suicide, authorities said.

Carter knew that her text messages to Roy could send her straight to jail. 

"[If the police] read my messages with him I'm done. His family will hate me and I can go to jail," Carter texted a friend, according to the Sydney Morning Herald, after Roy finally killed himself in a Kmart parking lot. 

Investigators were still able to access their conversation even after she convinced Roy to delete her previous texts before he died. 

"You just have to do it," "Tonight is the night," and "It's painless and quick," were some of the messages sent by Carter who could face up to 20 years in prison.

After Roy told her that he is scared the carbon monoxide poisoning might fail, Carter was more confident and told him that if the truck emitted fumes "for five or ten minutes, you will die," according to the Washington Post. "You lose consciousness with no pain. You just fall asleep and die."

She even had a back up plan ready for him in case he won't go through with the poisoning. "I'd try the bag or hanging," her text said. "Hanging is painless and take like a second if you do it right."

On the early morning hours of Roy's death on July 12, 2014, he and Carter were still exchanging texts.