CHARLESTON, S.C. (AP) – A firearms expert says he matched dozens of bullets from the South Carolina church where nine people were slain to a gun recovered from a man’s car.

State Law Enforcement Division Agent James Green testified Monday that he verified that 70 bullets and fragments found at Emanuel AME Church in Charleston were fired by a gun recovered from Dylann Roof’s car.

Green says he examined 11 other bullets that had been fired, but the results weren’t conclusive.

Roof is on trial this week on 33 federal charges related to the June 2015 slayings during a Bible study at the church. His attorneys have said he would be willing to plead guilty if prosecutors would drop their pursuit of the death penalty.

He faces a second death penalty trial in state court next year.