NBC is reporting that the 62nd street townhouse explosion may have been caused by a gas leak; the building housed doctors' offices and investigators are looking into a possible suicide attempt. Until more details emerge, let's go to the man-on-the-street interview with a notorious gas expert:
CNN's Larry King was in a hotel nearby at the time of the explosion. He said it felt like an earthquake.
"I've never heard a sound like that," King said.
We sincerely doubt that.