My daughter and her husband live on Worth Street about 2-3 blocks east of 40 Worth Street. They had just left the area 15 minutes prior to the incident with my other daughter to head upstate to visit our other daughter who had just lost her 2 week old infant son after 2 open heart surgeries that were unsuccessful to place a cardiac shunt to to try to mitigate a serious heart defect.
At any rate, they were out of the area, but barely. I saw the news and called right away because at the time they could have easily been on the street.
They reported that it was very gusty and windy so this appears to be weather, not terror.
I am so sorry about the baby!
Sorry about your grandchild...life can be so difficult.