Ken Langone, the co-founder of Home Depot, is appealing for tougher controls on immigrants to the U.S.
Langone spoke to Fox News after one of his company's vehicles was used in an ISIS-inspired terror attack in New York that killed eight people on Oct. 31, CNS News reports.
"Nothing proves to me more than this experience that we need to know who's here with us," said Langone, according to CNS. "How the hell can we just say, 'Come on in and we don't care how you got in here and we don't care where you're from or what you did or what your background was'?"
Langone dismissed the suggestion that he was anti-immigrant.
"I'm not arguing pro or against immigration," he added. "My grandparents came here as immigrants. I think virtually everybody's ancestors came here as immigrants. We're a country of immigrants, but they all came legitimately and we all knew where they came from and what they wanted to do."
He also challenged the position that the U.S. could not stop the terrorist threat.
"There's nuts in the world," said Langone. "We have mass murders, remember Kaczynsk, the guy that was the Unabomber -- we have enough screwballs in America without importing them."
Langone's comments came as authorities revealed that Sayfullo Saipov plotted for weeks before carrying out his attack in the name of the Islamic State. He drove a rented Home Depot vehicle along a bicycle path, striking pedestrians and cyclists.
Saipov was a legal permanent resident of the U.S. who arrived in 2010 through the Diversity Visa Lottery program.
Federal authorities charged Saipov on Nov. 1 with providing material support to ISIS and violence and destruction of motor vehicles, CNN reports. He was allegedly motivated to carry out the attack after watching ISIS videos on his phone.
"He did this in the name of ISIS," said John Miller, New York's deputy police commissioner for intelligence and counter-terrorism, according to Vox. “He appears to have followed, almost exactly to a T, the instructions that ISIS has put out in its social media channels before with instructions to their followers on how to carry out such an attack.”
Miller noted that Saipov has never been the subject of an FBI or New York intelligence investigation, according to The Washington Post. However, a police official pointed out that Saipov's name has cropped up during previous inquiries into the activities of his friends.
New York Democratic Gov. Andrew Cuomo described Saipov on Nov. 1 as a loan wolf who was "radicalized domestically."
“After he came to the United States is when he started to become informed about ISIS and radical Islamic tactics,” Cuomo said, Vox notes. “We have no evidence yet of associations or continuing plot or associated plots, and our only evidence to date is that this was an isolated incident that he himself performed.”