(Newport, OR)  --  Investigators say an improperly discarded cigarette caused a fire that killed four people and injured several others at a motel in Newport last summer.  One of those injured was Rebecca Joanne Sinclair, who authorities say improperly disposed of the cigarette.  She's facing charges including manslaughter.  The fire resulted in the deaths of 51-year-old Tammi Sue Hepner, 63-year-old Allen Arthur Hepner, 60-year-old Sandra Sue Shoemaker, and 64-year-old Danny Keith Shoemaker.