No, Gregor was not a colleague of Maya's.
Maya worked for an international development think tank in London/ Washington DC.
Gregor Murray was a councillor in Dundee, initially SNP, but thrown out of the party for calling women who disagreed with "them" cunts on social media. Murray, incidentally, is bearded, wears a suit and tie, and I think it's fair to say, presents in what our culture would count as a stereotypically masculine way.
Everything Murray has said and done on social media/in the press has given me the impression that Murray is a thoroughly nasty piece of work.