The Israeli military this week found and recovered the remains of Youssef Ziyadne, just days after his name appeared on a Hamas list of hostages to be released.

As winter deepens, so does the suffering of dozens of hostages in Gaza, and their families are pressing for a ceasefire that will secure their release.

"We are going to do everything we can in this round to get all the American hostages, living and dead, out," Ambassador Jacob J. Lew tells NPR. His tenure as President Biden's envoy ends this month.