It appears to me, after refreshing my memory with the link at ACandyRose.com on the sources we have seen, which include gossip, speculation, and summaries from an alleged actual police report on the investigation of this case posted by an anonymous person, but no actual police report: LE never found any link between these cases. They did investigate and collect crime scene evidence; they re-investigated that possible link when Team Ramsey shoved it down their throats 3 years later.
The 14 yr old's attack came 9 months after the Ramsey murder. If there was some involvement of the mother or daughter which resulted in a need to cover something up, we don't know. Neither do all the investigators who only provide speculation, as well.
The same situation is clearly present with the Ramseys and their Team trying to use this case as proof of their own innocence: look, another intruder!
Unfortunately children are sexually assaulted in this world on a routine basis, and statistically most often it's by someone they know, not an intruder. So two in the same town, at their homes, in the same year is more common than unusual.
Other elements are listed as similarities, but in fact without some kind of corroborative evidence, these could be nothing but fabrications to cover up what actually happened. Or perhaps the similarities are that they have similar elements of a cover up, for all we know.
Both cases involved an alleged "intruder" spending hours in the home after gaining no-forced entry, hours concealed from multiple active family members in the home before the attack on the child--according to the parents' stories.
Look closer: the older child's mother was home during the attack on her, but not the father. There could be reasons either the mother or child may have lied about what truly was happening and who was involved: perhaps the teen's boyfriend sneaked into the house to be with her and they got caught, he ran, and the girl told the "intruder" lie to keep from being punished; also what if the mother secreted a boyfriend in that night and when she fell asleep he went for the girl, got caught, and fled?
In each SPECULATIVE scenario, either one of those present would have had a motivation to cover up the true nature of what was going on. Since the Ramsey case was on everyone's mind, a ready-made intruder was handy. "Hours hiding" explains how he knew to run through the master bedroom to escape through exit doors there--not everyone has those, not even the Ramseys. So voila: the "intruder" who hid in the house had time to wander around for hours...just as was publicly speculated on by Team Ramsey to explain how their intruder managed his familiarity with the home, writing pads & pens, cellar room, etc.
Also both cases had an alarm system which didn't get tripped upon an intruder's entry, so how did he get in without signs of force? Easy: neither was activated for various reasons, in the latter case until bedtime at 11. That alarm is tripped, though, by the mother and daughter running out of the house--odd, isn't it, when the intruder had just escaped through the bedroom and was outside, as well? My instinct would be to lock doors and stay inside while calling 911. But that alarm did go off, so why? Maybe mom was chasing the intruder or boyfriend outside, not running outside in fear? Or maybe the daughter was running after her boyfriend? If either of those were true, tripping the alarm brought LE, so now the cat is out of the bag and stuff has to be covered up?
Or maybe what they said happened, happened. How do we know what is true and what is not? Yes, some elements are similar to the Ramsey intruder story--which has also produced no evidence to prove an intruder was ever there.
FACT: We know JonBenet was attacked because she was murdered, had an autopsy which proved she was brutally sexually assaulted, bludgeoned, and strangled. But there is no proof that there was an intruder in the home, much less one who spent hours there, concealed, before the attack. We only have the prime suspects to tell us that's the truth.
Is this an "intruder's" M.O. or are they random events, separate from each other but sucked into the Ramsey vortex?
Only those involved will ever know--and they're not telling.