david norris , 51 , was jailed for 20 years for the murder of his estranged wife dionne in the graveyard of st nicholas church in southfleet .
the pair , whose marriage had broken down in august of that year , had arranged to meet up to lay flowers first at the grave of the victim 's mother , then at norris 's grandmother 's , as they did every year .
norris collected his wife and they visited the first gravesite before they had a conversation about their marriage and whether it could be saved .