Susan Krueger, the Green River victim, was aged 42 when she died in 1985.
"Susan Krueger, 42 -- May 5, 1985, her body was found along a
guardrail on Interstate 5. She was last seen 2 months earlier leaving
the Pierce County Jail."
Her birth date according to the Social Security Death Index was 26 Jul 1942.
This would make her too old to be the same person.
The above link lists another Susan Krueger with a birth date that is a
better match for high school years of 1962-1966:
Born: 10 Feb 1952
Died Jun 1979, age 27 at Lawrence, Douglas, KS 66044
There is no mention of her at the Gresham High School Alumni website:
"Susan Krueger" oregon
"Susan Krueger" "Pierce County Jail"
"Gresham high" reunion