Families of nine victims killed in a racist attack at a Black South Carolina church in 2015 have reached a settlement with the Justice Department over a faulty background check that allowed Dylann Roof, who was convicted for the massacre, to purchase the gun he used.

According to AP, the $88 million deal, which includes $63 million for the families of the slain and $25 million for survivors of the shooting, was set to be announced Thursday in Washington.

Roof had been arrested on February 25, 2015, weeks before the June 17, 2015 shooting, on a drug possession charge. However, a series of clerical errors and missteps allowed him to purchase the handgun he later used in the massacre.

Roof was sentenced to death in January 2017 for the massacre, becoming the first person ordered executed for a federal hate crime.

(With input from agencies)