If it is true what we've provisionally deduced, which is that no one directly involved with the case knew exactly where he was living as he'd only just moved there, then it is possible he simply hadn't heard. Possibility is that he went home that evening and got drunk, so that he could add more cans to his recycling. While doing so he listened to CDs rather than the TV. Then, in the early hours of the morning he conked out asleep, till just before lunch (the times given are my own guesses not something I have read) when he needed to start looking for a place that could take his car for repairs. WHile in the car he played CDs rather than listen to the radio. Then he dropped off the car, and started walking back to wherever he was going, with the bag of rubbish he cleared out of his car before leaving it, antisocially dumping it in the river, and then got spotted and picked up. I mean, don't we all have a bag of rubbish we hurriedly clear out of our cars when handing them in for repairs.
NB I am not proclaiming his innocence, as he is the official suspect. I am simply saying that what he have read so far in the press is not the evidence that could be relied on in the trial as it's too open to other explanations.