Looking for the source of a scary story involving two brothers fighting off a type of ghoul trying to get to their sister

I think it was in an anthology book of supposedly true scary stories, but it involved siblings inheriting a house next to an old church. Some kind of ghoul appeared outside the sisters' window a few different nights until the brothers waited for it and shot it. They contacted the local law man and they tracked this thing back to a crypt underneath the church where it was in a coffin with fresh bullet wounds. Does anyone know what book this is from?