King County judge Richard Jones sentenced a man...

King County judge Richard Jones sentenced a man prosecutors termed "the first known serial killer in Washington" to life in prison for the 1968 slaying of a young woman. 
For 36 years, police and prosecutors have been eager to put closure to the case of Sandra Bowman, a 16-year-old pregnant newlywed who was bound and stabbed 57 times in a random attack.
With the help of DNA technology and a newly installed team dedicated to unraveling unsolved "cold cases," they finally ended the mystery when last month they charged John Dwight Canaday, who has been serving a life sentence for killing two other women.
Yesterday, Canaday, 59, pleaded guilty to 1st-degree murder for the Bowman killing. His sentence will run consecutively with his current life term at the Washington State Penitentiary in Walla Walla for the 2 other murders.
Canaday killed Bowman on Dec. 17, 1968
The "Cold Case Squad," the team of Seattle police detectives and county prosecutors formed in 2002, linked DNA evidence from the crime scene to Canaday.
Just weeks later, on Jan. 4, 1969, he killed Mary Bjornson, 21, and 3 weeks later, he raped and killed 20-year-old Lynn Tuski.
Canaday was put on death row for those 2 murders, but was given a reprieve in 1972, after a U.S. Supreme Court ruling struck down death penalty statutes in Washington and many other states.