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The full episode of the CBS Evening news from May 20, 2016 edition

The White House was briefly locked down after a shooting occurred nearby; For the last 15 years, Fred Vautour has worked the grounds of Boston College as a janitor.

May 21, 2016 (20:37)

American, Germans wins Nobel medicine prize

American, Germans wins Nobel medicine prize

B-1 bombers removed from U.K.

B-1 bombers removed from U.K.

Alleged Chinese agent arrested at LAX

Alleged Chinese agent arrested at LAX

What cases the Supreme Court will take up

What cases the Supreme Court will take up

Poll: Collins and Jackson tied in Maine

Poll: Collins and Jackson tied in Maine

Alito on criticism of SCOTUS from political leaders

Alito on criticism of SCOTUS from political leaders

Extended Interview: Sen. Thom Tillis

Extended Interview: Sen. Thom Tillis

"Hawkeye Wave" spreads kindness

"Hawkeye Wave" spreads kindness

Caleb Flynn claims innocence during sentencing

Caleb Flynn claims innocence during sentencing

Alito says justices are not political players

Alito says justices are not political players

Trump focuses on red states ahead of midterms

Trump focuses on red states ahead of midterms

U.S. hastily removes B-1 bombers from U.K.

U.S. hastily removes B-1 bombers from U.K.

Growing anger against Cornell University

Growing anger against Cornell University

Nobu chef killed in car crash

Nobu chef killed in car crash

Israel would've downed FlyDubai plane: sources

Israel would've downed FlyDubai plane: sources

Russia pushes back against plague reports

Russia pushes back against plague reports

Christa Pike's attorneys push for commutation

Christa Pike's attorneys push for commutation

Cornell students protest handling of alleged rape

Cornell students protest handling of alleged rape

Sources: Israel was prepared to down FlyDubai flight

Sources: Israel was prepared to down FlyDubai flight

What to know as Trump campaigns in Nebraska

What to know as Trump campaigns in Nebraska

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