Marauding ‘lepers’ in thirteenth century Yorkshire?

Interesting little snippet from the 1293 eyre of Yorkshire rolls – a homicide case from the liberty of Knaresborough. Margery Barry was, the report says (JUST 1/1098 m.22) , hosting two men with leprosy. At night, they got up, killed her and fled. The killing is not the interesting part – what struck me as particularly interesting was the fact that the two men were not confined in some out of town leprosarium, but were, apparently, moving about fairly normally (if homicidally). Worth bearing in mind when we think about the treatment of those with leprosy in medieval England.