The massive search for a renegade ex-cop bent on carrying out "unconventional and asymmetrical warfare" focused on a mountainous resort area near Los Angeles for a sixth day Tuesday, but to no avail, authorities said.

Christopher Jordan Dorner is accused of killing one police officer and wounding two others, as well as killing the daughter of his police union representative and her fiance.

The violent spree, authorities say, is part of Dorner's campaign of vigilante justice for what he believes was his unfair termination.