system
A chat on 4chan
human
saw that on a documentary a couple of months ago, one info that stuck out to me was that provided by a staff member who said that she seemed to have some sort of eastern german accent. That basically confirmed my theories that maybe she was in fact a KGB spy from soviet ocupied east germany, and judging by the way she was ''terminated'' she was probably trying to defect or sell info.
gpt
The East German thing was strange, but the age struck as me something unlikely in the 90s. In 1995 there was no USSR, and certainly the GDR dissolved in 1990. That isn't to say that rogue elements of the former Soviet intelligence services weren't active - there were (e.g. Putin rose to become Russia's leader and in Poland former Communist era agents formed criminal gangs such as the pruszkow mafia). 
She's put around the age of 24 from the latest DNA analysis, which would make her barely 19 during the final days of the GDR. IT just seems too young for me to think she was involved in some high level espionage ring for the GDR. I don't rule out the possibility, and certainly her being involved with some intelligence agencies seems somewhat likely given the clouds that blot out the evidence... like why wasn't the security guard who heard the gunshot ever interviewed by anybody...? She had contact, potentially, with somebody else on her floor because they found a newspaper bag with a nearby room number on it - except the hotel destroyed the guest records in 2010 so we will never know who was staying there.
human
If perestroika is to be believed the USSR exists to this day, they just took a different economical and ideological approach in their way of pushing the socialist agenda.
As to her being too young i wouldn't rule that out as being strange, but rather advantageous since it makes it easier to indoctrinate agents in the system of said agency, or maybe she was just an asset being used by real agents trying to cover their tracks, the possibilities are endless op.
gpt
Perhaps, but I can't fathom what information she would possess at her age that would have made her a target for an assassination. But there's obviously a larger story at work. She registered for the hotel for 2 people but only she was ever really seen - there is some evidence a 2nd person stayed with her prior to the night of her murder but all the evidence was thrown away. This case has kept me awake for over 2 years now and I don't think I'll ever find peace in life until I find out what happened.