(CNN)It wasn’t until Yusuf Nur was inside the execution chamber, standing next to a condemned man strapped to a gurney, that he understood why he’d been asked to be present. The inmate, Orlando Hall, had asked Nur to be his Muslim spiritual adviser in the weeks leading up to his execution by the United States government and to serve as the minister of record when he was put to death on Thursday, November 19, 2020. “At the beginning, it was not clear to me that being a spiritual counselor would entail being there in the death chamber,” Nur told CNN, “and be there only a few feet from the gurney where they execute the person.” “But the day of the execution, standing there right beside his gurney where he’s lying, in that death chamber, that’s when I realized why he needed me there,” Nur said. Even with the inmate’s family in an adjoining witness room, “I was the only person he knew there.” Between July 2020 and January 2021, 13 federal death row inmates were executed by the US government in the final months of the Trump administration — the first federal executions since 2003, when an informal moratorium halted the death penalty for 17 years. It was a historic series of executions. Prior to the hiatus, only three federal inmates had been executed since 1988, making this schedule of executions the most prolific in decades. The 10 executions that took place in 2020 alone were the most federal civilian executions in a calendar year since the 1800s, according to the Death Penalty Information Center.