Connecticut Judge Lisa Morgan told Robert L. Johnson he showed flagrant disregard for the court before sentencing him to 21-months behind bars.
Johnson was convicted of a second probation violation last week stemming from a late 2010 incident when he attended the same horse show as his victim without his probation officer's permission.
Johnson was handcuffed in the courtroom and escorted out by deputies to begin serving his sentence. He will spend more time behind bars than the nine months he originally spent when he was convicted of sexually assaulting one of his young riding students.
Johnson was convicted in 2001 of molesting the then 14-year-old female equestrian. The terms of his probation stated he was not to have any contact with the victim, which included being at the same horse shows when she was present.
Johnson was found by another judge to have vandalized the farm he lost in a 2010 civil case in which a former male student accused Johnson of raping him multiple times. The student was awarded a civil judgment of almost $1.7 million. Johnson was ordered to turn over his horse farm, then known as Quarry Town Stables, as part of the settlement.
When Johnson is released from prison he will serve the remainder of his probation, which is just over three years. Johnson was given a 63-month sentence with all but 21-months suspended. If he has problems following future probation orders he could be required to serve the remaining 42-months locked up, according to Senior Assistant State's Attorney Russell Zentner.
Johnson has twenty days to file an appeal.