Re: Stating the obvious
Without wanting to state the obvious...
It tends to be more difficult to obtain evidence 7 years after the fact. If the investigation hadn't been hampered at the time by Mr A skipping across the North Sea to Blighty, it would quite conceivably have meant that the investigators at the time would have been able to interview him, and then if this indicated further avenues of enquiry to follow them, and possibly obtain corroborating evidence (or otherwise; no assumption of guilt or otherwise is made).