article_snippet: Investigators are looking into whether a gas line was "inappropriately accessed" at the building where Blast occurred, New York Mayor Bill de Blasio told reporters Friday.
article_snippet: Gas utility inspectors checking on work in the building where the explosion occurred's basement left the premises about 30 minutes before Blast.
article_snippet: In August, Con Edison shut off gas lines at the building where the explosion occurred for 10 days after discovering Con Edison'd been tampered with, according to Alfonso Quiroz, a spokesman for the utility.
article_snippet: Before Blast, the restaurant's owner had smelled gas and contacted the building where the explosion occurred's owner, but didn't contact authorities.
highlights_snippet: Emergency commissioner: Restaurant owner smelled gas, but didn't call 911 .
  