NEW YORK (AP) - The Uzbek immigrant accused of mowing people down along a bike path "did this in the name of ISIS" and planned the deadly attack for weeks, following the extremist group's online instructions practically to the letter, police said Wednesday.
Investigators, meanwhile, questioned Sayfullo Saipov in his hospital bed, working to extract information about the truck attack that left eight people dead Tuesday near the World Trade Center memorial. Saipov, 29, was shot by a police officer after jumping from his rented Home Depot pickup.
John Miller, deputy police commissioner for intelligence, said Saipov left behind notes at the scene, handwritten in Arabic with symbols and words, that essentially said the Islamic State group, or ISIS, "would endure forever."
"It appears that Mr. Saipov had been planning this for a number of weeks. He did this in the name of ISIS," Miller said, citing the notes.
In the past few years, the Islamic State has been exhorting followers online to use vehicles or other close-at-hand means of killing people in their home countries. England, France and Germany have seen deadly vehicle attacks since mid-2016.
"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 its followers on how to carry out such an attack," Miller said.
Carlos Batista, a neighbor of Saipov's in Paterson, New Jersey, said he had seen the suspect and two friends using the same model of rented truck several times in the past three weeks.
In Tuesday's attack, Saipov drove his speeding truck for nearly a mile along the bike path, running down cyclists and pedestrians, then crashed into a school bus, authorities said. He was shot in the abdomen after he jumped out of the vehicle brandishing two air guns, one in each hand, and yelling "God is great!" in Arabic, they said.
In addition to those killed, 12 people were injured.
Miller said Saipov had never been the subject of a New York police investigation but appears to have some links to people who have been investigated.
The aftermath took a political turn Wednesday when President Donald Trump slammed the visa lottery program that Saipov used to come to the U.S. Trump called it "a Chuck Schumer beauty," a reference to the Senate's top Democrat.
The program dates to 1990, when Republican President George H.W. Bush signed it as part of a bipartisan immigration bill. Trump called on Congress to eliminate it, saying, "We have to get much tougher, much smarter and less politically correct."
Schumer, who represents New York, said in a statement that he has always believed that immigration "is good for America," and he accused the president of "politicizing and dividing" the country.
In a number of recent extremist attacks around the world, the assailants were found to have been "lone wolves" - inspired but not actually directed by the Islamic State. In some cases, they never even made contact with the group.
Gov. Andrew Cuomo said Saipov became "radicalized domestically."
On the morning after the bloodshed, city leaders vowed New York would not be intimidated, and they commended New Yorkers for going ahead with Halloween festivities on Tuesday night.
They also said Sunday's New York City Marathon, with 50,000 participants and some 2 million spectators anticipated, will go on as scheduled.
"We will not be cowed. We will not be thrown off by anything," said Mayor Bill de Blasio.
While the mayor said there have been no credible threats of any additional attacks, police announced the deployment of sniper teams, bomb-sniffing dogs, helicopters, sand-truck barricades and other stepped-up security measures along the marathon route, in the subways and at other sites.
And Police Commissioner James O'Neill urged New all Yorkers to be the eyes and ears of the police and come forward if they see "something that doesn't look right."
The dead consisted of five people from Argentina, one from Germany, and two Americans, authorities said. Nine people remained hospitalized in serious or critical condition, with injuries that included lost limbs and wounds to the head, chest and neck.
New Yorkers woke to a heavy police presence Wednesday outside the World Trade Center and at other locations around the city.A roughly two-mile stretch of highway in lower Manhattan was shut down for the investigation. Authorities also converged on Saipov's New Jersey apartment building and a van in a parking lot at a New Jersey Home Depot.
Runners and cyclists who use the popular bike path were diverted away from the crime scene by officers stationed at barricades.
"It's the messed-up world we live in these days," said Dave Hartie, 57, who works in finance and rides his bike along the path every morning. "Part of me is surprised it doesn't happen more often."
The slight, bearded Saipov is from heavily Muslim Uzbekistan and came to the U.S. in 2010, police said. He is a permanent legal U.S. resident.
A law enforcement official said he has two children and a wife and moved up from Florida around June. The official wasn't authorized to discuss details of the investigation and spoke on condition of anonymity.
Records show Saipov was a commercial truck driver who formed a pair of businesses in Ohio. He has also driven for Uber.
Mirrakhmat Muminov, 38, of Stow, Ohio, said he knew Saipov because they were both Uzbek truck drivers. He portrayed Saipov as an argumentative young man whose career was falling apart and who was "not happy with his life."
Muminov said Saipov lost his insurance on his truck after his rates shot up because of a few traffic tickets, and companies stopped hiring him. Muminov said he heard from Saipov's friends that Saipov's truck engine blew up a few months ago in New Jersey.
Muminov said Saipov would get into arguments with friends and family, tangling over even small things, such as going to a picnic with the Uzbek community.
"He had the habit of disagreeing with everybody," Muminov said.
He said he and Saipov would sometimes argue about politics and world affairs, including Israel and Palestine. He said Saipov never spoke about ISIS, but he could tell his friend held radical views.