In February 2015, the state of Massachusetts indicted Michelle for involuntary manslaughter. While a homicide charge like this one typically carries a maximum of 20 years, she was sentenced to only 15 months in August 2017.

Michelle entered Bristol County jail in Dartmouth, Mass. in February 2019 and was released three months early, in February 2020, for good behavior, per NBC News. Michelle spent approximately one year behind bars.

Source: https://www.distractify.com/p/how-long-was-michelle-carter-in-jail