Accusations are mounting in the sexual-misconduct investigation of Wenatchee resident Kenneth Briggs. 'I am in possession of taped conversations proving that Briggs had sex with waitress Tina Pruitt, then urged her to lie about it,' federal prosecutor Oliver Schill said. 'I strongly urge Briggs to come forward now and admit the truth before more time and taxpayers' money is wasted.' Though hearings have not yet begun, a number of Wenatchee residents are already calling for Briggs to step down from his position as a third-shift gas-station attendant. 