here are our top stories. in the gulf of mexico, hurricane nate is gaining strength heading towards the united states. the storm is on track to hit the state of louisiana early sunday. officials say the storm has killed 24 people already in central america. authorities say they still have not uncovered a motive in the las vegas mass shooting. investigators say steven paddock had explosive in his car when he killed 58 people from the hotel. but they haven't found links between him and any terror groups like isis. >> we're very confident that he did not -- there was not another shooter in that room. but i cannot confirm to you today and what we continue to investigate is, whether anybody else may have known about this incident before he carried it out. the white house is refusing to clarify a mysterious remark the u.s. president made this week. it came during a photo op while meeting with pentagon leaders. donald trump said maybe it's the calm before the storm.