Tonight, war and peace, things fall apart as hope for a peace deal hit serious snags.

Russia's deadly strikes on Ukraine's capital overnight, killing 12 and injuring dozens more,

one of the worst in nearly a year.

President Trump speaking out against Russia, calling on President Putin to stop.

While trying to salvage a deal, what he said in the White House, as Ukraine

resists American pressure to make major concessions. Nearly 100,000 mourners come to pay final

tribute to the Pope inside the funeral preparations and plans for the conclave to replace him.

Tom Yamis, live from the Vatican. Our exclusive new poll nearly 100

days into the Trump administration, why Gen Z, says they're struggling to make ends meet

in the Trump economy and inside their startling divides. Why one of the biggest wildfires

in the Northeast ever is now being investigated as arson.

And above the fire lines, Jacob Soberoff's exclusive reporting about the high-tech research

on wildfires being done from the sky by NASA, but is the program in jeopardy?

Why are dolphins dying?

We go to the California coast to see what's killing these spectacular marine mammals.

And the two brothers whose NFL aspirations were blindsided by unthinkable tragedy.

He is one of them set to fulfill their dreams tonight at the draft in Greenback.

This is NBC Nightly News with Lester Holt.

Good evening and welcome.

We start tonight with the dramatic images from Ukraine, Russian missiles raining down over

Kiev and striking deep at the heart of fragile American-led peace efforts.

The deadly attack, one of the most devastating strikes in a large Ukrainian city since the start of the war, killing at least efforts. The deadly attack, one of the most devastating strikes on a large Ukrainian city

...