A Valhalla resident is facing charges for allegedly menacing another driver on the Sprain Brook Parkway.          

State police say it happened last month on the parkway northbound in Greenburgh.          

Police say the victim overtook the suspect's vehicle and began driving in front of it.          

The suspect then pulled up next to the victim's vehicle - and displayed a firearm.

Richard Zimmer, 30, is charged with menacing and due back in Greenburgh Town Court in August.