At least 20 dead , 30 missing and `` most probably '' dead , police say . Railway CEO casts doubt on engineer 's story . Police : Score: 6 72 unsecured oil tank cars roared into Lac-Megantic Saturday , killing at least 15 .
At least 20 dead , 30 missing and `` most probably '' dead , police say . Railway CEO casts doubt on engineer 's story . Score: 6 72 unsecured oil tank cars roared into Lac-Megantic Saturday , killing at least 15 .