ROCHESTER, N.Y. -- Emanuel Lutchman, who pleaded guilty to aiding a terror group by plotting an attack at a Rochester bar on New Year's Eve in 2015, was sentenced Thursday to 20 years in prison and 50 years post-supervision in federal court.

Lutchman pleaded guilty to a single count of conspiracy to provide material support to a terrorist organization and had been in custody since his arrest more than a year ago.

When given the opportunity to speak in court, Lutchman denounced the Islamic State and other Jihadi groups, but once the sentencing was handed down, his tone changed.

As the judge handed down the sentence, Lutchman, whose attorney sought a 10-year prison term, became increasingly agitated.

"He showed his prospects for rehabilitation are relatively poor," said Brett Harvey, federal prosecutor.

Police and the FBI arrested Lutchman after they say he contacted an ISIL planner, and purchased items he planned to use in the attack, which was to target patrons celebrating the New Year at the Merchants Grill with knives and a machete.

Besides his courtroom statements apologizing and denouncing ISIL, Lutchman had also written the court a letter doing the same. He, friends, and family all wrote letters, outlining a life of mental illness, believing he wasn't capable of pulling off such an attack.

Once sentenced, Lutchman laughed, then began shouting in Arabic, telling the court "There will be more of us" and "there will be more blood."

"He meant everything he said. He was a vocal supporter," Harvey said. "He, without any government involvement, contacted the state, contacter a recruiter, contacted an attack planner and set this thing up."

In August, Lutchman pleaded guilty to one count of conspiracy to provide material support to a terrorist organization. Investigators found a video made by Lutchman the day before the planned attacks, stating his intentions.

"There's a bigger purpose to that," said Joe Testiani, FBI Joint Terrorism Task Force. "It wasn't just him confessing to his crime and acknowledging it and taking responsibility. It was so an organization that was able to do damage to the United States was able to use it in furtherance of their cause."

"Most chilling, I think, is he states his rationale for the attack, and he says he's going to spill the blood of the kafir, or non-believers, as the blood of Muslims is spilled overseas," Harvey said.

Lutchman's attorney, a handful of friends and family members all left court without comment.

FBI agents say the case shows clear evidence that terrorist threats remain.