() Former U.S. Attorney General William Barr was set to appear Monday before the House Oversight Committee as part of a review of the Jeffrey Epstein sex trafficking investigation.

Barr, who served as attorney general during President Donald Trump’s first term, is one of several people subpoenaed for a deposition earlier this month by committee chair Rep. James Comer, R-Ky.

Barr is expected to face questions regarding his involvement in Epstein’s death investigation, according to CBS News.

Barr personally reviewed the 11 hours of footage from the New York jail where Epstein was held on the night of his death. He later told the Associated Press that no one entered the area where Epstein was held, and agreed with the medical examiner’s conclusion that he died by suicide in August 2019.

Barr said he was “appalled” when Epstein was found dead in his cell, and added that he was concerned about “serious irregularities” at the Metropolitan Correctional Center. A report from the Department of Justice indicated the jail failed to follow required measures to make sure Epstein was safe, among other standards.

At the time of his death, Epstein was awaiting trial on charges that he sexually abused women and teenage girls as young as 14.