20-year-old woman guilty of involuntary manslaughter after encouraging teen boyfriend to kill himself

A judge found a Massachusetts woman guilty Friday of involuntary manslaughter in the suicide of her boyfriend.

Michelle Carter, now 20, sent 18-year-old Conrad Roy III hundreds of text messages before he killed himself in July 2014 by inhaling carbon monoxide in his pickup truck, reported CNN.

Many of those messages encouraged Roy to take his own life, and prosecutors argued that she berated the vulnerable young man after he developed second thoughts about suicide.

She encouraged Roy to get back into his truck at one point, and she listened by phone to his last breaths.

Prosecutors argued that Carter used her boyfriend's suicide to get the attention from her friends.

Carter faces up to 20 years in prison when she's sentenced in the case.