New images of crash landing in Toronto as investigators search for cause; Brutal winter weather sweeps country; Resignations and anticipated firings as Trump overhaul of federal government continues; and more on tonight's broadcast.

Hamas returns four hostages killed in captivity, including Bibas brothers; Zelenskyy meets with Trump envoy in Ukraine as questions swirl about US support; Mexico ramps up troop levels at US-Mexico border; and more on tonight's broadcast.