As attorneys filed Matthew Smith’s plea, he sat silently in federal court on Long Island, New York, wearing a tan oversized shirt and black-rimmed spectacles.
A $10 million (£7.7 million) bond was required before the 61-year-old was released from house detention.
In October, Mr. Smith was arrested and accused with operating an international sex trafficking and prostitution company, together with Mr. Jeffries, 80, and their alleged middleman James Jacobson, 71. Additionally, Mr. Jacobson and Mr. Jeffries entered not guilty pleas.
Between 2008 and 2015, the three are charged by federal prosecutors of forcing at least 15 young men to participate in “violent” and exploitative sex activities through compulsion, fraud, and force.