Police are appealing for anyone who might have seen Mr Nicol to contact them.
Supt. David Byrne speaks to ITV News about the investigation.
More top news
Dave Jones laid out his vision when he was officially unveiled as the new manager of Hartlepool United
Calm but cloudy - but when will we see some sunshine?
The five-year-old has started pioneering treatment, which it is hoped will shrink his tumours and give him more time with his family