The chances are that that date was just a "plea and directions" date - that would fit the time scale. Although trials are now scheduled a lot quicker than they used to be a few years ago, it is still usually around 12 months from charge before a murder trial is held (usually due to the problems of getting two or three weeks that everyone can make, as much as anything else).Just seems strange we've heard neither of his release or imprisonment.
If the defendant had pleaded guilty on 27 May we'd have heard all about it as the sub judice restrictions would have ended. If not (as is probably the case), there would have been little if any coverage as all they could say way "He appeared, they wittered on a bit. He's now going to appear ...". This sort of report may make local papers, rarely makes the nationals, even in pretty high profile cases.