I have nothing to offer this investigation, because what is needed is the identity of the perpetrator, and with me living in a far distant country, I could never offer this information. This is why I have never posted, even though I have followed every single thread since day dot.
Therefore the following observations are just me voicing my opinion. They really are useless, so scroll by if you're hoping for something useful!
This is, in every respect, the most bizarre crime I've ever come across. Mainly due to the amount of official information released, which not only gives us no information, but contradicts itself in each part. In the initial press conference we were given an image and an audio recording. I can't remember the exact statement, but we were left with the information that the voice and the image may not both belong to the same person, and yet there is not definitively more than one person involved. Or the other way around; the audio and image may both be of one person, but that doesn't mean they are the only person involved.
This is followed by a sketch of a face, which we can place on the image of the individual we have come to know as BG, and who we consider to be the offender.
Then in the most recent presser, more than 2 years on, we are told that that image is considered to be 'secondary', and a new (original) completely different sketch is now depicting the suspect. An image which is totally different in colour, age, structure, hair set and expression. No explanation why, or what we should make of the first sketch.
If I were someone who was local and had an inkling about someone, all of these inconsistencies would prevent me from exploring my suspicions further