The 29-year-old Uzbekistan terrorist who plowed into New York pedestrians on Tuesday is now bragging to police from his hospital bed, saying he would have continued mowing down bikers and pedestrians had he not crashed into a school bus.

Not only is he unapologetic for killing eight people and injuring at least 11, Sayfullo Habibullaevic Saipov told police he is quite pleased with himself but wished he could have done more harm.

Investigators discovered 10 to 15 pieces of paper with writing in Arabic praising the Islamic State of Iraq and Syria. One note said “ISIS will endure,” sources say.

Knives were also recovered at the crime scene.

Saipov was allegedly driving a Home Depot rental truck when he deliberately drove onto a bike lane along Manhattan’s West Side Highway. He drove for several blocks before slamming into a school bus and coming to a stop.

Police say he exited the vehicle and shouted, “Allahu Akbar,” before being shot by police and taken into custody.

The FBI has taken over the investigation into the attack.

Saipov came to the U.S. in 2010 through a program called the Diversity Immigrant Visa Program. He had worked as a truck driver and lived in Ohio, New Jersey and Tampa, Florida, since arriving, BBC News reports. He was working as an Uber driver and had passed a background check, the company told Fox News.

Four of the victims injured by the terrorist were teachers and students who were riding on a yellow school bus near Stuyvesant High School when they were hit by the suspect’s Home Depot rental truck. One student is reportedly in critical condition.

Mirrakhmat Muminov, an Uzbek activist and blogger in Ohio, told BBC News he met Saipov shortly after he arrived in the country and was living in Ohio. Muminov said Saipov “had no knowledge of the Koran” when they met and was not well-educated.

He said Saipov soon became depressed and resentful after he was unable to find a job as a truck driver. Muminov said Saipov was radicalized by information he saw on the internet.

“Because of his radical views, he frequently used to argue with other Uzbeks and moved to Florida. From then onwards, I lost contact with him,” Muminov told BBC News.

CBS News report wrote, “Authorities say they believe Saipov acted alone and is not part of a wider conspiracy or plot,” despite the fact that he was clearly inspired by ISIS.

“This was, now, a classic case of a radicalization of a domestic jihadist who associated with ISIS, and this is their new playbook,” New York Gov. Andrew Cuomo told “CBS This Morning” on Wednesday.