PETROLIA, Calif. – More than 70 law enforcement officers were part of the ongoing hunt Sunday for a Northern California man wanted in the killing of his wife and two young daughters.

The Humboldt County Sheriff’s Department said SWAT teams from three counties, federal officials and local police continued to search through the rugged terrain of California’s remote North Coast for Shane Franklin Miller.

Miller, 45, is suspected of killing his family Tuesday night in Shingletown, then fleeing to Humboldt County, where low fog and dense brush offer cover.

Investigators recovered Miller’s pickup truck after it was found abandoned Wednesday night near Petrolia, about 200 miles west of the home that Miller shared with his wife, Sandy, 34, and daughters Shelby, 8, and Shasta, 5.