THE MOST WANTED man in America was charged Monday with killing a Riverside, Calif., cop in an ambush that could earn him the death penalty, authorities said.

And video surfaced of Christopher Dorner, 33, shopping for scuba gear before he went on the warpath, allegedly murdering three people, reports said.

The revenge-seeking ex-cop was still at large Monday. The father of the man at the center of Dorner's vendetta urged the former LAPD officer to end his alleged spree. "He should turn himself in," Richard Gettler told the Daily News. Dorner was fired after he claimed a colleague kicked Gettler's son during a 2007 arrest.
