NEW : Fire was ` ` started intentionally by an unknown accelerant , '' official report . Blake was not at the home at the time of the fire , Lusczynski said . NEW : Two victims had upper body trauma . Note : Two adults are sleeping in one bedroom , and teenage children in their own bedrooms . Former tennis pro James Blake , 34 , owned the house but was selling it .
NEW : Fire was ` ` started intentionally by an unknown accelerant , '' official report . NEW : Two victims had upper body trauma . Note : Two adults are sleeping in one bedroom , and teenage children in their own bedrooms . Former tennis pro James Blake , 34 , owned the house but was selling it .