STATEN ISLAND, N.Y. — It was a startup of sorts, dreamt up by a group of friends sitting around a pool table on a quiet block in Oakwood.
But instead of software, authorities said they were selling untraceable killing machines, otherwise known as ghost guns.
Brandon Nudelman, 33, of Cotter Avenue in Richmond, is due for sentencing in the coming months after he was convicted of overseeing the operation. His younger brother, Justin Nudelman, was convicted as well. Authorities said he assembled and sold the guns with friends and associates…