My opinion on MH testimony was that he was biased and dug himself into a deep hole, quickly. He started out combative and cocky and was cowed in short order on x-exam.
I saw some areas of his testimony that I questioned as being truthful and authentic. His WS posting was kind of stupid, but it did illustrate he was invested in pointing suspicion away from BC. Not once in his scenario did he consider that BC may have committed the murder. Whether he really had blinders on or had an agenda, who knows.
He presented himself like a gossipy hen, rivaling any clucking housewife imagined in that or any 'hood, and ultimately proved himself boorish.