Three District men were sentenced Friday to dozens of years in prison for intimidating and retaliating against witnesses in a 2007 murder case, according to authorities.

The men — Leroy Green, 23, Jermaine Scales, 27, and Darius Styles, 27 — were convicted in D.C. Superior Court in November of charges including conspiracy to obstruct justice, conspiracy to intimidate and kill witnesses, assault with intent to kill and aggravated assault, according to the U.S. Attorney’s Office.

Green was sentenced to 86 years in prison; Scales was sentenced to 61 years and ten months, while Styles got 38 1/2 years.

On July 29, 2009, authorities said, Green saw a witness who had testified against him in a murder trial in which he was acquitted. He shot at the witness and another man, authorities said; both men survived.

An investigation in the shootings revealed that they were preceded by more than two years of intimidation and violence in connection with the trial, according to authorities.

Green, Scales and Styles had intimidated witnesses in Washington’s Greenway neighborhood in connection with Green’s trial in the 2007 fatal shooting of Royell Walker, authorities said.