Dr. Muhammad Sheatt, who is from eastern Aleppo, came to the United States at the age of 24.
He spoke Thursday about his relatives who used to live there as well.
"Uncles, aunts, cousins,” he told us. "Most of them have left that since all these barrel bombs and bombings have been going on in the last couple of years."
Just in the past few hours, Syrian activists said government forces fired at ambulances trying to leave the city, wounding at least three people.
Sheatt's native city was once a Syrian showplace of more than 2 million people.
It was reduced by the rubble of war to the size of Cincinnati and is now a humanitarian hellhole and a place of emergency evacuation.
Imam Ismaeel Chartier of the Clifton Mosque talked about a western journalist who has been caught up in the devastation.