I can confirm that Eastern European street markets are flooded with Vietnamese cloths. While some are imported majority are made in each given country by Vietnamese communities. They do have quite a presence there for many decades. Not sure of back story (why) but that is different topic.
Red tshirt with label Lai Si Hoa, was very likely purchased on such a street market. Most importantly it seems some words apart of English ones on that shirt are from that country, so it was made there and not imported.
I tried to unscramble writing/words as it does seem as Southern East European (Romania, Bulgaria) word (most notably syllabels at the end of the word) but unfortunately all photos of that shirt I found so far are too small or too blurry. If better quality of it is shown in any of the videos it would be brilliant if someone can take screen shot and post it here.
Yes, input from someone from Romania or Bulgaria would be great here. We can give a shout to people at WS thread about Bulgarian journalist.
We have to remember that in 2005 Holland was still closed for Eastern European workers. She was likely undocumented but that fortunately is not that big obstacle in identifying her as it would be for example for undocumented Mexican in USA.
While dress sense might seems strange to American or UK fashion sense people I would consider it quite "normal" in Holland or Germany.
That she wore sport underwear with matching colour sweat pants I would not be suprised she considered it quite stylish. I could easily see her excercising in that and that top bra on.
From bedsheets we can deduct that crime definitely did not happen in hotel or motel but rather someone's home. It could be either family or I am more inclined - someone who definitely knew her at least few days.
That only 100 suitcases were made is very interesting and quite a big lead. I personally still can't fathom how she would fit in suitcase not just with sheets but 2 big duvets. Which brings to mind, did they mention anywhere her couse of death? It was stated as homicide but I don't remember if it was ever specified as being shot, stabbed, dismembered etc...
Still need to look at orange cloth/sheet as it is a bit unusual. Also not sure that it really was cloth/sheet but rather something else in the house (table cloth? curtain?).