Tonight we're tracking severe storms on the move with the record Memorial Day travel

rush now underway. Nearly 44 million people expected to get away on the

busiest Memorial Day weekend in nearly 20 years.

Today could be the busiest date ever in the air,

but severe weather threatening 45 million from Texas to Michigan

after five straight days of tornado outbreaks in the

central US. In Oklahoma this monster tornado on the ground for nearly an hour

our team at the airports and in the storm zone.

Also breaking tonight the horror in Haiti a young American couple working as

missionaries killed by gangs the mother of one of them telling us her son called

her as it happened.

His final words to her, the American tourist avoiding a 12-year prison sentence for bringing ammunition to Turks and Caicos.

His relief following 100 days trapped in paradise as the judge sets him free.

But what about the other Americans still detained there? We speak to two of them.

Just in tonight, the judge denying Alec Baldwin's bid to dismiss his charge over the

deadly rush shooting when the actor is headed to trial.

New pressure on Israel, the UN's top court, ordering it to halt the Rafa operation.

And the college baseball team fighting to bring a world series win back to a school

whose days are number.

This is NBC Nightly News with Lester Holt.

And good evening, I'm Tom Yamas in for Lester.

We begin with two things on the minds of so many Americans

...