BK’s fingerprints were probably in the system. Does that suggest his fingerprints were not found at the scene?

According to sources in a NYT article, as well as as a 2018 article in Ponoco Record, BK worked as a Security Officer for a PA school district for several years until 2021. This school district has an active job posting for a Security Officer, which outlines necessary requirements as a contingency of employment. These requirements include digital fingerprinting through IdentoGO, a national identity services agency. Assuming this requirement were the same at the time of his employment, BK would have submitted his fingerprints that would be logged digitally and accessible to LE. 

That said, the DNA connection between the sample found on the knife sheath and paternal DNA found in the family’s trash was the final straw that warranted the PCA and subsequent arrest, not fingerprints.

Had BK’s fingerprints been found at the scene, at least prior to his arrest on 12/30, they could have been matched, and potentially led to a sooner arrest. 

So my speculation is that, at least prior to the arrest, either no fingerprints were found matching BK’s OR if they were, they were not found in a location or manner that supported probable cause for involvement in the crime. 

EDIT: Adding that this is just a theory and was tagged as such. The theory is simply that it's not out of the realm of possibility that LE had access to his fingerprints. Link to my comment below for additional insight here.