The manhunt for the Brown University shooter gripped the nation for days.
Americans demanded answers about how this happened.
And Kristi Noem just exposed the ugly truth about how the Brown University shooter got in.
The nation watched in horror on December 13 when a masked gunman opened fire during a finals week study session at Brown University's Barus and Holley engineering building.
Two students — 18-year-old Ella Cook and 19-year-old Mukhammad Aziz Umurzokov — were murdered while nine others suffered gunshot wounds.
Two days later, the same killer executed MIT professor Nuno Loureiro in his Massachusetts home.
For nearly a week, law enforcement conducted a massive manhunt before identifying 48-year-old Portuguese national Claudio Manuel Neves-Valente as the suspect.
Authorities found him dead from a self-inflicted gunshot wound in a New Hampshire storage unit Thursday night.
Trump Shuts Down The Program That Let Him In
The revelation that sent shockwaves through Washington came when Homeland Security Secretary Kristi Noem dropped the bombshell about how Neves-Valente got here in the first place.
"The Brown University shooter, Claudio Manuel Neves Valente entered the United States through the diversity lottery immigrant visa program (DV1) in 2017 and was granted a green card," Noem announced on X. "This heinous individual should never have been allowed in our country."¹
President Trump didn't waste a second.
He immediately ordered Noem to suspend the entire Diversity Visa Program.
"At President Trump's direction, I am immediately directing USCIS to pause the DV1 program to ensure no more Americans are harmed by this disastrous program," Noem declared.²
The lottery program hands out up to 50,000 green cards every year to people from countries with low immigration rates to America.
Winners get randomly selected — and that's the problem.
Nearly 20 million people applied for the 2025 lottery, with more than 131,000 selected including spouses.
Portuguese citizens won only 38 slots total.
Neves-Valente drew one of those winning tickets back in 2017.
Trump Has Been Warning About This Disaster For Years
This isn't the first time the Diversity Visa lottery got Americans killed.
"In 2017, President Trump fought to end this program, following the devastating NYC truck ramming by an ISIS terrorist, who entered under the DV1 program, and murdered eight people," Noem reminded everyone.³
Back then, Trump called on Congress to eliminate the visa lottery after that attack.
Congress refused.
And Americans kept dying.
Now investigators have connected Neves-Valente to three separate murders — the two Brown students plus MIT professor Loureiro, who he'd known since they both attended the same physics program in Portugal between 1995 and 2000.
Authorities believe Neves-Valente specifically targeted Loureiro, though a motive remains unclear.
The two Brown students appear to have been in the wrong place at the wrong time.
Neves-Valente first came to America on a student visa in 2000 to study physics at Brown.
He took a leave of absence in 2001 and formally withdrew in 2003.
Nobody knows where he was for the next 14 years before winning that diversity lottery ticket in 2017.
Rhode Island Attorney General Peter Neronha said a citizen tip "blew this case right open" when a witness nicknamed "John" posted on Reddit about seeing a gray Nissan with Florida plates near the shooting scene.
That rental car traced back to Neves-Valente.
Investigators recovered two 9mm Glocks with high-capacity magazines, a bulletproof vest, and the jacket seen in surveillance photos from his storage units.
Trump's move to suspend the diversity visa lottery program represents the latest example of the administration using tragedy to advance immigration reform.
After an Afghan man killed National Guard members in November, Trump imposed sweeping restrictions on immigration from Afghanistan and other countries.
The program was created by Congress, which means Trump's executive action will almost certainly face legal challenges.
But this time Trump's not backing down from protecting Americans from a program that's killed innocent people twice now.
Two Brown students and an MIT professor died because Congress refused to listen when Trump warned them about this disaster in 2017.
¹ Kristi Noem, X post, December 19, 2025.
² Ibid.
³ Ibid.