Authorities say Sheridan and Michael Hegarty, also an Irish national, bought the cup from a North Carolina auction house for $50,000 in 2012. They say the two then smuggled it out of the U.S. through Miami to the United Kingdom to sell.
Both men were indicted in 2014. Hegarty was sentenced to one year and six months after being extradited back to the U.S. in 2017. Sheridan was returned to the U.S. this past August.