 Wilson then arrested Ries and brought him back to Chicago.In Chicago, Wilson got Ries to testify that the cashiers checks represented gambling profits received by Guzik, and his testimony secured Guzik's conviction in late 1930.Intending to have Ries also testify against Capone, Wilson used funds from a group of wealthy Chicago businessmen, known as the "Secret Six," to send Ries on a boat trip to Uruguay and keep him safe until Capone's trial.