Apologies in advance, the flickr links refused to archive, but I have attached images that are relevant from the links.
Additional note: While searching for links, I found a post by user "八岐大蛇" (which I cannot seem to tag, sorry!) that touches on this also.
Out of curiosity, searching Kayla's name brings up
a flickr account that appears to have been completely ground zero'd in terms of content (why I think that instead of an unused account, I'll get into).
What remains, however,
is her following, with a familiar name appearing: One
Aleisha Sweep.
As we know, Aleisha Sweep is the name of a government employee that appeared on some of the
police reports, though the spelling varies depending on where you look.

Why, then, does her name come up in this fifteen-year-old Flickr account? And why are their following lists so similar?
Admittedly, I know nothing of Flickr etiquette or anything else in regards to how/why/what people post and comment, but one common theme that I've noticed, is the way that others comment on the photos.
To me, it reads as though they were all classmates who made these Flickr accounts for assignments. This may further be supported by the fact that some of the accounts have albums listed with names such as "Project" or "Assignment", followed by a number.
If so, it would put both Kayla and Aleisha in the same circle for however long that course was going on for.
I assume she also had content on there once for the class, but nuked it likely at the advice of McBalldo - that, or the images have been made private.
Of course, this is all merely speculation until proven in a court of law.
Is there something more to be gleaned from this? Maybe. I have no basis beyond the above information, but I wonder if
the contempt that Nick had for the named Aleisha Sweep also had something to do with a previous encounter. Perhaps Kayla had something of her own to say when it was Aleisha Sweep assigned to their case.
Or is this all some technicolour bullshit served fresh from the FanfictionFarms? You decide!