Holmes noted that "twins are often exposed to the same stimuli" growing up and that "something in their adolescence could have triggered an interest in molesting children."
While their trials are separate -- Mark Blankenburg's case began this week and Scott Blankenburg will face a jury in April -- both men dispute the charges against them.
"What I can say is my client adamantly asserts his innocence. You hear that all the time but this is genuinely his position that he has done absolutely nothing illegal," said Jack Garretson, Scott Blankenburg's attorney.
Garretson said the photos of high school boys may be numerous but they do not show any nudity. And, Garretson argues, any pornographic photos downloaded from the Internet show "persons who were over the age of 18." At trial, he also intends to prove that someone else downloaded those photos off the Internet -- not his client. As for the victims who claim to have had sex with the men? Garretson said his client maintains "they are lying."
Prosecutors admit some of the victims in this case have "difficult" reputations.
"Our job will be to get the jury to understand that, because these boys grew up to be young men with behavioral problems, that shouldn't discredit them from telling the truth about what happened to them when they were teens," said Piper.
And now at least one jury is getting a chance to decide what that truth is.