Rep. Nancy Mace, R-S.C., accused her former fiancé and three other men of drugging and raping her and filming assaults of other women without their consent in a stunning speech on the House floor Monday—drawing denials from all four men.

State Law Enforcement division opened an investigation into Nancy Mace's sex abuse allegations. Experts say it could take a while before possible prosecution.

S.C., alleged “some of the most heinous crimes against women imaginable” were committed by her ex-fiancé and three other men, all of whom denied the accusations.