'I Put My Arm Around Her And Started Choking Her'
On the 109 DVDs are hundreds of hours of video of investigators' interrogation of Ridgway, his "field trips" showing police where he hid bodies, and intriguing discussions between Ridgway and a forensic psychologist.
Much of this material is quite graphic. What is also startling is that Ridgway lays out his confession with little or no emotion. It was a robotic recitation of his brutal crimes, and his twisted justification for mass murder.
And for the first time, we hear the twisted reasoning of the Green River killer -- he believed he was solving the prostitute problem.
"I always thought I was doing you guys a favor, killing prostitutes," Ridgway said. "You guys can't control them, but I can."
And he recounted just how he killed them.
"And I choked her to death and I took my socks off and got em in a knot and tied them around her neck and tied them as tight as I could," he said.
In hundreds of hours of interviews with police over seven months, Ridgway laid out his grisly confession hoping to save himself from the death penalty.
The first interview with police happened June 13, 2003.
"I'm willing to plead guilty to the counts that I committed, not any others," Ridgway said on tape.
He tells them he's killed at least 47 women, but it could be as many as 53. He's just not sure.
In eerie field trips, the killer lead investigators to three of his victims.
"At the end of the guardrail, on the left hand side, on the left hand side," he pointed out to police.
For 20 years, police had been unable to find their remains.
"Could we walk down there? That tree looks familiar," he said on tape.
But despite what they gained, investigators say these trips troubled them because they knew Ridgway was re-living his crimes -- getting one more thrill at their expense.
And it was sometimes difficult for police to listen to the killer's confession.
"She raised her head up and that's when I put my arm around her, my right arm and started choking her," Ridgway said.
He Brought His Son Along For Some Murders
Ridgway also described how he killed one woman in the woods near Sea-Tac Airport. In a horrible twist, Ridgway left his 7-year-old son Matthew waiting in his truck just a few hundred feet away.
"I just told him to stay inside the truck, I'd be back in a couple of minutes," Ridgway said.
Murder marked the beginning of a weekend visit between Gary Ridgway and his young son, Matthew.
"I wasn't expecting to pick up a date, but my urge for sex and to kill her was more than it was to keep Matt safe," Ridgway said.
Ridgway says it took less than 10 minutes to do away with his victim. Afterward, he calmly emerged from the woods near Sea-Tac Airport to the naive questions of his son.
"Matthew asked me where the lady was, and I said she just decided to walk home," Ridgway said. "I couldn't have any mistakes, because my son was there and if she came running out naked, I would have to kill her, take her down and choke her right there in front of Matthew. I couldn't have that, so I had to have a guaranteed kill."
In the meantime, police continue to talk to Ridgway. Investigators from Snohomish County recently interrogated Ridgway about murders there, but police say they're convinced Ridgway is not responsible for their unsolved crimes.
Ridgway pleaded guilty in December to 48 murders and was sentenced to life in prison without parole.
Over coming months police and prosecutors will release more video, photos and documents from their investigation of the worst convicted serial killer in the United States.