The fact that he said "the laptop was determined to be the possession of a janitor who worked at the facility and the news article says "An investigation by the FBI revealed that a janitor is the main suspect in the search." I would say he was an actual insider.
https://www.ktsm.com/news/local/el-paso-news/child-pornography-reason-behind-sunspot-observatory-closure-according-to-court-documents/1460386237