JOHN YANG: Welcome to the "News Hour."

Tonight, investigators say the suspect# in the brazen daylight shooting of two## National Guard members in Washington, D.C.,# drove cross-country to carry out the attack,## but they're still searching for a# motive.

The two victims remain in## critical condition and the accused# shooter is also in the hospital.

Prosecutors say the suspect,# who's an Afghan national,## will be charged with three counts of# assault with intent to kill.

And the## Trump administration is further restricting# immigration in the wake of the attack.

Our coverage begins tonight with# White House correspondent Liz Landers.

LIZ LANDERS: Caught on camera, the# moment after an attack that shattered## the pre-holiday calm near the White# House, the suspect, already wounded,## tackled to the pavement, surrounded# by law enforcement.

Within moments,## officers take him into custody, ending what# authorities describe as a deliberate ambush.

Just minutes earlier, officials say,# he opened fire on two National Guard## members as they waited at a Washington,# D.C., bus stop, the victims, 20-year-old## Sarah Beckstrom and 24-year-old Andrew Wolfe,# both from the West Virginia National Guard.

JEANINE PIRRO, U.S.

Attorney for the District of# Columbia: They answered the call.

They took the## charge.

They volunteered.

They put their lives# on the line for people they don't even know.

LIZ LANDERS: Law enforcement identified the# suspect as an Afghan national and said he## drove across the country from his home north# of Seattle with a plan to commit the attack.

JEANINE PIRRO: The suspect he has been# identified is Rahmanullah Lakanwal,## a 29-year-old Afghan who entered the# United States under Biden's Operation## Allies Welcome, a program following the# disastrous withdrawal from Afghanistan.

LIZ LANDERS: The alleged# shooter used a .357 revolver,## shooting a Guard member and then firing# again after the soldier fell to the ground.## The shooter then turned to fire# at the second Guard member.

The CIA director, John Ratcliffe, confirmed# the suspect had worked with an agency-backed## paramilitary unit during the U.S.

war in# Afghanistan and entered the United States## through a Biden era immigration program# for Afghans fleeing the Taliban takeover.

President Trump framed the shooting# as an act of terror and launched a## broadside against immigration, vowing to# redouble his mass deportation efforts.

DONALD TRUMP, President of the United States:# We must now reexamine every single alien who has## entered our country from Afghanistan under Biden.# And we must take all necessary measures to ensure## the removal of any alien from any country who does# not belong here or add benefit to our country.

LIZ LANDERS: He also ordered 500 more National# Guard troops to Washington, in addition to about## 2,000 already there, though it was unclear when# they would arrive or where they would come from.

The agency that oversees immigration in# the United States says it had stopped## processing immigration applications# from Afghanistan effective immediately.

SHAWN VANDIVER, Founder, AfghanEvac: This# is one deranged man committing terrible## crimes against our service members,# and he should be held accountable.## The entire Afghan community should# not be held accountable for this.

LIZ LANDERS: Shawn VanDiver is# the president of AfghanEvac,## a U.S.-based nonprofit working with Afghan# refugees.

He said the Trump administration## was already working on closing pathways for# legal Afghan migrants even before this incident.

SHAWN VANDIVER: On day one, they shut down the# ongoing relocation through our safest, most secure## immigration pathway in history.

And it's just# so worrisome to see them jump to conclusions.

LIZ LANDERS: According to AfghanEvac, the accused## gunman was evacuated by the U.S.

military# in August 2021 after the fall of Kabul.## He first arrived under humanitarian parole# after a thorough vetting process under the## Biden administration and was granted asylum# earlier this year by the Trump administration.

SHAWN VANDIVER: I don't think the vetting is# where the failure occurred here.

I think this man## is being used as a political cudgel by# the administration to impact an entire## community.

And that's not fair.

If a school -- if# a shooter is from Missouri, they're not trying to## do something that impacts all Missouri.# This is prejudice disguised as policy.

LIZ LANDERS: The director of the# U.S.

Customs and Immigration Services## said today in a statement that he is# directing a -- quote -- "full-scale,## rigorous reexamination of every green card for# every alien from every country of concern."

When "PBS News Hour" asked which of these# countries will be impacted, the administration## pointed us, John, to an executive order listing# 19 countries, including Afghanistan and Yemen.

JOHN YANG: Liz, the National Guard's# been in D.C.

for months now.

They came## in August.

There's a court fight going# on about this.

What's going on there?

LIZ LANDERS: This has been a contentious issue# for months now here in the nation's capital.

The D.C.

deployment started back in# August, when the president declared## a crime emergency here.

That has now# been extended several times since.## The president does have the ability,# he has the right as the commander in## chief to mobilize the National Guard in# D.C.

because it is a federal district.

However, the D.C.

attorney general has been# challenging this deployment in federal court,## saying he's overstepping his authority.

Last# week, a federal district judge ruled in favor## of the attorney general here in Washington,# saying that the deployment was likely## illegal and that it violated the# city's rights to self-government.

That ruling, though, was paused for three weeks to## give the Trump administration time to# respond and appeal, which they have.

JOHN YANG: White House correspondent# Liz Landers, thank you very much.