In typical ISIS/ISIL fashion, the planner of the attack did not directly participate and was killed in a raid in a Paris suburb. Others were caught in a Brussels Islamic neighborhood.
President Obama had stated the previous day, November 12th, that ISIS had been 'contained' to the areas of Syria and Iraq where it was currently fighting. After the attack, he spoke at a press briefing to support the French People and Government but declined to echo the French in assigning blame to ISIS.
On the next day, November 14th, there was an international expression of sympathy in displaying national monuments in the colors of the French Tri-color (Blue-White-Red) from Sydney to San Francisco. Notable in absence was the US White House that, just months previous (June), displayed the Rainbow Colors to celebrate the Supreme Court striking down the Defense of Marriage Act.