Lesley Groff, Jeffrey Epstein’s longtime assistant, denied knowledge of her former boss’s crimes in her transcribed interview with the House Oversight Committee on Tuesday, the latest witness to testify in the panel’s sprawling Epstein investigation.

“I never saw anything improper,” Groff told members of the committee, a source familiar with the matter told MS NOW.

Groff, who worked for Epstein for nearly 20 years until he was arrested in 2019 on sex trafficking charges, began her testimony before the Republican-led committee around 10 a.m. ET.