Fugitive ex-LAPD cop Chris Dorner fatally shot a San Bernardino County Sheriff's deputy during a Tuesday shootout, before barricading himself in a remote cabin.

California Fish and Wildlife officers initially spotted Chris Dorner at 12:22 p.m. driving a white Dodge pickup truck in the remote Seven Oaks area of the San Bernardino Mountains. Dorner opened fire on the officers, fled on foot, and entered a cabin, reports  CBS Los Angeles .

A second gun battle occurred a short time later where hundred rounds were fired, reports the  Los Angeles Times . Two San Bernardino County Sheriff's deputies were hit in an exchange of gunfire in an area near Route 38. One deputy died at Loma Linda University Medical Center. The other deputy is expected to recover.

"The best thing for him now is to surrender," LAPD Commander Andrew Smith told the media shortly after 3 p.m. "There's a tremendous sense of apprehension among our officers. Until this man is in custody, none of the officers in our department are going to rest."

LAPD detectives continued to pursue 1,045 clues in the case, Smith said.

Earlier, Dorner reportedly broke into a cabin in the 1200 block of Club View Drive and tied up a couple. One was able to get away and call authorities, reports the Associated Press . He reportedly stole the couple's white pickup truck.

Authorities have been searching for Dorner since Thursday. He is suspected of killing three people, including a Riverside Police officer , and wounding two other officers.

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