A Suffolk man pleaded guilty Thursday in U.S. District Court in Norfolk to distribution of heroin resulting in death.

Carlos A. Brown, 45, continued to sell drugs even after heroin he sold resulted in the death of 27-year-old Ryan Wilson of Chesapeake, according to the U.S. Attorney’s Office.

According to the statement of facts filed with the plea agreement, Brown sold heroin from his Portsmouth residence on County Street from June to November 2015. On Nov. 18, 2015, Brown contacted one buyer describing his heroin as a “missile.” Shortly thereafter, Brown distributed that heroin.

On Nov. 21, 2015, Wilson was found dead having used Brown’s heroin. Even after learning of Wilson’s death, Carlos Brown continued to sell heroin, according to the U.S. Attorney’s Office.

A law enforcement team consisting of members of the FBI, Virginia State Police and the Chesapeake Police Department made four controlled purchases of heroin and fentanyl from Brown before they arrested him on April 21, 2016.

Brown faces a mandatory minimum sentence of 20 years in prison and a maximum penalty of life in prison when he is sentenced on Nov. 9, 2016.