Pol hit by new accusation. An ex-aide accused state Sen. Kevin Parker of putting her into a headlock in an angry confrontation two years ago that foreshadowed Parker's slugfest this week with a traffic agent, sources said yesterday. The Senate's Democratic leader, Sen. David Paterson of Manhattan, confirmed that Parker's aide, Neysha Williams, reported the March 2003 incident to his staff, but said he did not know of the alleged headlock. Williams alleged Parker (D-Brooklyn) shoved her out of his office during a "screaming, finger-pointing" confrontation, said Paterson. "She said the shoving could have been inadvertent, so she wasn't...