Home Depot Co-Founder Ken Langone pushed for stronger immigration screeing after an ISIS-inspired terrorist used one of the company’s vehicles to go on a murder spree this week in New York City.

“Nothing proves to me more than this experience that we need to know who’s here with us,” he told Fox Business Network as the carnage was unfolding.

“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’?” CNS News quoted him as saying.

President Donald Trump on Thursday reiterated his call that the Uzbek immigrant accused of killing eight people by speeding a rental truck down a New York City bike path should get the death penalty.

The suspect, Sayfullo Saipov, told investigators he was inspired by watching Islamic State videos and began planning Tuesday’s attack a year ago, according to a criminal complaint filed in federal court against him on Wednesday.

Saipov, 29, also said “he felt good about what he had done” and asked for permission to display the flag of the militant group Islamic State in his hospital room, the complaint said.

For his part, Langone said he wasn't for or against immigration. "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 said.

“This underscores the need for us to be diligent and have a program and have an effort where people have to let us know who they are and that they came in here legitimately,” he said.

“Why have borders, otherwise? I don’t understand this,” he exclaimed on FBN's “Your World with Neil Cavuto.”

“Look. there’s nuts in the world. You know, we have mass murders, remember the guy that was the Unabomber – we have enough screwballs in America without importing them,” he said.

“We ought to know who’s coming to America, we ought to know something about their background, like we do with all legitimate immigrants. And, this argument that we should look the other way with illegitimate immigrants is nuts.”

Meanwhile, Trump had suggested on Wednesday sending Saipov to the Guantanamo Bay military prison in Cuba, where terrorism suspects apprehended overseas are held, but on Thursday he said doing this would have been too complicated, Reuters reported.

“Would love to send the NYC terrorist to Guantanamo but statistically that process takes much longer than going through the Federal system...,” Trump said on Twitter on Thursday. In a subsequent tweet, he added, “...There is also something appropriate about keeping him in the home of the horrible crime he committed. Should move fast. DEATH PENALTY!”

...There is also something appropriate about keeping him in the home of the horrible crime he committed. Should move fast. DEATH PENALTY! — Donald J. Trump (@realDonaldTrump) November 2, 2017

Saipov faces two charges, one of which carries the death penalty if the government chooses to seek it, acting U.S. Attorney Joon Kim said.

The charges are one count of violence and destruction of motor vehicles causing the deaths of eight people and one count of providing material support and resources to a foreign terrorist organization - Islamic State, also known as ISIS.

The maximum penalty for the first is death; the maximum for the second life in prison, Kim said.

Saipov faces the possibility of execution because he was charged under federal law; had he been charged in a state court he would not have faced this risk as New York state laws do not allow for execution.

The complaint said he was particularly motivated by a video where Abu Bakr al-Baghdadi - the leader of Islamic State - exhorted Muslims in the United States and elsewhere to support the group’s cause.

The Federal Bureau of Investigation said it had located another Uzbek man, Mukhammadzoir Kadirov, 32, wanted for questioning as a person of interest in the attack.

U.S. law enforcement officials, speaking on condition of anonymity because the investigation was continuing, told Reuters that Saipov had been in contact with Kadirov and another person of interest in the investigation.

Five Argentine tourists, a Belgian, a New Yorker and a New Jersey man were killed in Tuesday’s attack. It was deadliest in New York City since the Sept. 11, 2001, attack when hijackers crashed two passenger planes into the World Trade Center, killing more than 2,600 people.

Saipov, who lived in Paterson, New Jersey, allegedly used a pickup truck rented from a New Jersey Home Depot (HD.N) to run down pedestrians and cyclists along a 20-block stretch of the Manhattan bike path, before slamming into a school bus.

(Newsmax wire services contributed to this report).

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