The assassin shot the Russian ambassador from behind.

“Remember Aleppo, remember Syria,” he shouted, murdering Andrey Karlov apparently in revenge for Russia’s deadly intervention in Syria.

The shooter was a 22-year-old Turkish police officer and shortly after his chilling attack he was shot and killed by Turkish security forces.

It comes a week after thousands rallied in Turkey, protesting Moscow’s support for the Syrian regime.

Russian airstrikes have helped the regime claw back control of the city of Aleppo, forcing the evacuation of thousands of civilians.

Some of them will end up at Al Kamuna camp in northern Syria, where Turkish aid workers are putting up new tents, though when CBS News visited on Monday, the people already living there said they have nothing but mud.

“We can’t keep our children warm,” said Ali Al Ali, who said he has been living in the camp with his five children for over a year after their home in Aleppo Province was flattened by a regime airstrike.

Children in the Al Kamuna refugee camp CBS News

“We burn everything to stay warm, even tires and plastic bags,” he said. “There’s one toilet for 200 people.”

Shams Al Ali said she is 95 years old, and wants to die. “God save us,” she said, “we need your mercy.”

Shams Al Ali CBS News

But even Al Kamuna -- a place of last resort -- was bombed last May, according to people there.

Mustafa Abdelrahman is a wheat farmer-turned-rebel fighter, who joined the hard-line Islamic group that now controls the area.

“Losing Aleppo isn’t the end,” he said. “The revolution will continue, even if we all die.”

But if Al Kamuna isn’t the end of the line in this miserable war, it’s difficult to imagine what is.