Former Microsoft CEO Bill Gates has chalked up his friendship with late convicted sex offender Jeffrey Epstein as a "huge mistake." The New York Times reported that Gates began a friendship with the disgraced financier in 2011, which was three years after Epstein pleaded guilty to procuring a child for prostitution and soliciting a prostitute. (Epstein was sentenced to 18 months behind bars but was ultimately released in 2010 after completing the end of his sentence on home confinement.