Adam had the Finland shooter's videos saved on his hardrive?

I was reading chapter 53 of the Sheltered Storm and I noticed this paragraph:

"The Columbine forum was staying up-to-date with their conversation topics, posting back and forth about President Obama’s staff nominations, and gun control, and wondering what would be on one Columbine killer or the other’s Facebook profile. Browsing through the topics, Adam noticed that in some of the ones sharing “tribute videos” from YouTube, now there were only dead links. But he had gotten diligent about saving copies of videos to his hard drive, for just that reason. He could still watch the clips left behind by the two Finland shooters, whenever he wanted."

Did he really have their videos? Are they mentioned in the police report or mentioned in some other way?