A former Louisiana prosecutor who was accused of soliciting sex from at least 20 women in exchange for favorable treatment faces his own sentencing Wednesday in federal court.

Harry Morel served as the elected District Attorney of St. Charles Parish outside New Orleans for more than three decades. Now he faces a maximum of three years in prison after pleading guilty to a single obstruction charge.

The deal closed the case, reflecting the difficulty of balancing the scales of justice between a powerful defendant and vulnerable victims.

The FBI caught Morel on video groping and trying to kiss a woman who had been arrested for drunken driving. But that woman died before Morel faced any charges, and many of the cases happened too long ago to prosecute.