Hi,first time poster, long time lurker!
Just wanted to put my feelings forward regarding the link to this attack and the Eunji Ban case. I don't think there is any link at all. Spring Hill is about a good half hour walk from there, if not longer. Spring Hill is pretty much Brisbane CBD and Annerley and Ekibin are suburbs of Brisbane, a few KMs from the CBD. I'm not saying it is definitely not him, but I do think it is a bit premature to assume it is linked.
I have lived in Brisbane all my life and there are always reports about random assults on joggers etc, many of whom are found not to be linked to each other, regardless of if the attack was in the same suburb etc. Brisbane is a fairly safe city, but like all places there are always going to be seedy people.
Annerley also for a bit of background on the suburb is not the safest place. High crime rate, even to the point that if you were a renter and tried to get house and contents insurance, you will either be paying through the nose, or turned down completely due to the high break and enter rate that occurs in the suburb. So the suburb in it's own right could have plenty of potential attackers roaming around. And Spring Hill is a bit of a cross section, due to it being in the CBD, many professionals choose to buy and live there as it is close to work etc. But it also has the total opposite clientle, such as a high rate of homeless, many of whom congregate in the park when Eunji's body was found. I used to work in Spring Hill and had to walk up the hill that Eunji was walking, and even during the day I would choose to walk along the main path instead of cutting through the park due to knowing the types that lurked within it. In saying that though, the same could be said about West End, Fortitude Valley. There are some places where you just wouldn't walk at night alone, or even with just 1 other person, because even though they are popular places to live with the professionals, they are also home to the down and outs.