It sure sounds like a hack job.
I have actually been reading the articles on the case in English here in the States and also in the German media. It sure is interesting to see how she was being portrayed by the European media (at least what i have read)
It seems to me that she was tried and convicted in the media before the trial started. They made her sound like a drug and sex maniac with this dark side. The physical evidence sure seemed to point to the guy who was convicted earlier, and much of the case against her and the boyfriend seemed somewhat flimsy.
It sounds like the evidence was handled very poorly and was totally contaminated.
Hopefully, justice will prevail in the end and something else will come out that proves her guilt or innocence.