OK, I wanted to chime in with a few things about this case that stand out to me personally. Some additional details I didn't see on the UM episode or mentioned here:
Everything Unsolved Mysteries Leaves Out About The Oslo Plaza Woman
1) The gun: reports for this case describe the gun as being a Browning pistol with its serial numbers expertly removed. The gun appears to be one of the few pieces of actual evidence left from this case, and a re-examination was done according to the article I posted (above). The results suggest this gun isn't actually an authentic Browning pistol: "[W]eapons expert claims that it's actually a Hungarian copy from the '60s or '70s that's compromised of several parts. The pistol is also reportedly a military weapon".
If this weapon wasn't actually an authentic Browning (but perhaps noted as a Browning by officials convinced it was a suicide, and not wasting more time than minimally necessary wrapping it all up), then perhaps that same thing could explain other curiosities (like lack of gun powder residue on her hands).
2) Coke/Diet Coke (Coke Light): reviewing photos of the hotel room this woman was found in, and came across one showing several empty bottles alongside one another on a counter. I would think the presence of an empty Coke bottle right next to an empty Coke Light suggests the presence of another person. Though not dispositive of the same, I have found most people don't stray between regular sodas and their diet counterpart. While true, it may have been what was left (and the same person drank it over the course of her stay), I think these two empty soft drinks alongside one another could also suggest another person's presence.
empty soda bottles are shown here:
https://i.imgur.com/bTJPYxo.jpg
3) Eye Makeup & Lack of Suitcase or Toiletries: (full disclosure, I saw someone else make this point online) the shower showed a wet towel & appeared recently used by someone. If the person showering was the deceased, how did she get eye makeup back on after washing it off? I didn't see any recovered items in the room to explain that (like, any makeup) so either the deceased showered, put on eye shadow, but another person was present and removed a toiletries bag or the eye shadow even just itself - or, someone else showered before leaving. I think this suggests someone was there with the deceased up until the end, to either take the shower or take the eye makeup. Since the shower was recent enough for dampness to still exist, that person could've been the shooter (or seen who the shooter was, if not the deceased)
4) Room 2816: I haven't seen any mention of this elsewhere, but apparently the room this woman was staying in (2805) included a newspaper with the room number '2816' written on it. Why would that be? Was someone in that room and staying simultaneous with this woman? Did she meet up with them while there? I find that interesting...
5) Room 2818: The occupant of room 2818, Borghild Strandenes, called the Oslo police six days after Jennifer's death and informed them about a suspicious couple. I'm interested in what made this couple suspicious to the caller, and whether that was intended to assist or misdirect? I wonder whether this was ever pursued, and/or ever located?
6) The Mysterious Mr X: A Belgian man stayed in the room across from from the deceased shortly before her death, referred to in reports as
"Mr X". The article I posted above says he was tracked down in his home in Belgium & questioned about the woman in 2805. Mr X told investigators he first heard about the death when he was checking out of the hotel. Thing is, Mr. X checked out the morning of the 3rd, but the woman's death wasn't discovered until the evening of the 3rd. Why did Mr. X suggest he heard about it while checking out, something we can recall without the need to have the date right - but the date of his check out show he was long gone by the time the body was discovered? I've read a lot about Mr. X in years past, but the article linked here is slim on its details. This is another rabbit hole, if anyone is interested
I have so many questions about this case, but hope she wasn't an intelligence agent whose family isn't aware of her death. If she were intelligence, I would presume the family have since been notified by whichever agency she operated within (who would know what to do when she disappeared at all, regardless of its connection to any possible assignment). I tend to think that not the case, as the tags remaining on some of her clothing would've been disposed regardless of the complexity should that have been the rationale for any other tag removal. If she is an agent and for whatever reason the family is unaware of her death (or the fact she was an agent, perhaps), I suspect that upon her identification taking place (if it hasn't been already), that information will likely not be released to the public.
Just my more immediate rambling thoughts on this case, FWIW. Curiosities I'd like to know, but perhaps nothing more than an anxious mind ruminating on easily explained stuff