A convicted killer in Utah who developed dementia during his time on death row is competent enough to be executed, a state judge ruled on Friday.Ralph Leroy Menzies, 67, was found guilty and sentenced to death in March 1988 for the 1986 killing of Maurine Hunsaker, a 26-year-old mother of three.Judge Matthew Bates said Menzies "consistently and rationally understands" what is happening and why he is facing execution, despite his recent cognitive decline."Menzies has not shown by a preponderance of the evidence that his understanding of his specific crime and punishment has fluctuated or declined in a way that offends