"Furman said Schulte continued his crimes from behind bars ... by creating a hidden file on his computer that contained 2,400 images of child sexual abuse that he continued to view from jail."
How do you get 2.4k images on a jail computer? Manifest it out of thin air?
Considering CIA is involved, which is known for torture, human experimentation, poisonings, planted evidence, etc. I'd not be too surprised if that file was straight up planted as an extra "fuck you" to the guy.
The sentence previous to the one you're quoting, the one you've omitted, changes the context quite a lot.
In the US a person pending trial can be either released or kept detained. (18 U.S. Code § 3142 - Release or detention of a defendant pending trial) In cases when the defendant is being charged with non-violent crimes, it's fairly common for them to be released until their trial. Possibly on bond.
The wording of his statement is... questionable. But in this context, it could be re-worded to something like "you're are accusing me of possession of illegal material, which is not a violent crime. I was not involved in creation of said material, therefore there are no victims of mine".
Anyway, even if he did have the material in question, the fact that they report finding some on a jail computer is awful weird. Those aren't, exactly, known for having unrestricted and unmonitored access to the internet. I, also, would be surprised if those computers are less locked down than school or library computers, which tend to restrict users' permissions to the bare minimum, often as far as prohibiting creation of files.