PORTLAND - One of Oregon s most notorious killers has linked to four additional murders.

Portland Police in a Thursday morning press conference said evidence shows Randall Woodfield, known as the I-5 Killer, was responsible for the death of four Portland-area victims during the late 1970s and early1980s.

Woodfield s DNA sample matched up with evidence in the murders of Darcey Renee Fix and Douglas Keith Altig who were found dead in their North Portland home in 1980.

He s also now believed to have killed Cherie Ayers in 1980 and Julie Reitz, a Beaverton woman who was sexually assaulted and murdered in 1981.

New technology made the case-busters possible, according to Sgt. Paul Weatheroy, head of the Portland Cold Case Squad.

Woodfield has been linked to dozens of crimes along the I-5 corridor in Washington, Oregon and California.

Investigators think he's responsible for a string of rapes and murders from the mid 1970s to the early 80s.

Though Woodfield has now been tied to four more murders, he will not be prosecuted for them as it would bring no increase in his sentence.

Investigators said, however, were he to ever come up for parole, the latest murders would be presented before the board.

Woodfield is serving a life sentence in the Oregon State Penitentiary in Salem.

More:Cold case murders

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