The Pawleys Island contractor who helped federal prosecutors build a money laundering case against former state Rep. Thad Viers received a prison sentence of 12 months and one day, authorities said Friday.

Marlon Weaver, 55, was sentenced after prosecutors asked that his punishment be reduced because of his assistance in other cases, according to a news release from the office of U.S. District Attorney Bill Nettles. Weaver, who pleaded guilty to conspiracy to launder money, was also ordered to pay $1.2 million in restitution and serve three years of supervised release.

Viers, 37, awaits sentencing after pleading guilty to a federal money laundering charge that carries up to 10 years in prison.