A 20-year-old Akron man pleaded guilty Friday to selling heroin to a woman who died from taking the drug.

Trevon Thomas pleaded guilty to involuntary manslaughter, a first-degree felony, and aggravated trafficking in drugs, a third-degree felony. Summit County Common Pleas Judge Lynne Callahan sentenced Thomas to seven years in prison.

Carissa Ewing, 28, was found unresponsive Nov. 20, 2014, by her mother in the Akron home they shared, and was later pronounced dead at a hospital. She had heroin and fentanyl in her system, according to a news release from the Summit County Prosecutor’s Office.

Investigators used Ewing’s cellphone to contact her dealer. Trevon Thomas arrived, thinking he was bringing more heroin to Ewing. Thomas was arrested and admitted to selling Ewing drugs earlier that morning, according to the news release.