he attack.

What we don't know:

A co-worker told investigators that Paporakis said his rifle jammed after he tried to shoot at a man from his vehicle. Paporakis allegedly sent the co-worker a video that appeared to show an AR-style rifle failing to fire.

Police have not confirmed whether the gun actually jammed.

Investigators also have not determined where the video was recorded or where the alleged shooting attempt occurred.

Police said they still do not know why Oct. 11 was significant to Paporakis.

They also said they do not know what radicalized him and were not sure whether he had a criminal history.

The manifesto and investigation

According to prosecutors, an eight-page document found during the investigation was titled  Why I Fought: A.K.A. (Aurora Shooter's Manifesto). 

Prosecutors said the document contained hateful statements targeting several groups, including people of Indian ancestry, Jewish people and Black people. Paporakis allegedly described those groups as  subhumans  and wrote about a plan to kill as many of them as possible, and described a plan to kill as many people as possible.

The document also described Paporakis' research into the Hindu temple location and encouraged others to commit violence.

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Police declined to release additional details from the manifesto while the investigation continues.

Electronic devices recovered from Paporakis' home are being examined at the FBI's Chicago Regional Computer Forensic Laboratory. Police said investigators are reviewing the devices for more information.

What they're saying:

Police said they were  very fortunate that something much, much worse did not happen. 

Officials also praised the co-worker who reported Paporakis' statements.

 We commend them for coming forward when they did,  police said.  If not for this individual, you might be talking about something completely different here. 

FBI Acting Special Agent in Charge Lucas Rothaar encouraged people to report threats rather than trying to decide on their own whether a threat is credible.

 The sooner we get that information, the sooner we can do that job,  Rothaar said.

Krishnamoorthi said his family has worshiped at the Aurora temple for about 40 years. He said his parents were there all day Sunday and that he did not learn about the alleged attack until police announced it late Wednesday.

 Everybody's shaken this morning,  Krishnamoorthi said.

He also thanked Paporakis' co-worker who contacted police and urged others to report violent threats.

 To any of your viewers who might be aware of anybody who might express that kind of violent intent, please cooperate with your law enforcement,  he said.  Please inform others so that we can stop these attacks before they happen. We have to fight together against this scourge of hate and violence. 

Krishnamoorthi called for federal security grants for nonprofit organizations, including temples, synagogues, mosques and churches. He also said he plans to ask law enforcement to investigate the case as a hate crime.

 The people who commit these acts of violence want us to change the way that we live and to change who we are, and we cannot do that,  Krishnamoorthi said.

What's next:

The FBI's Chicago Field Office, the Palatine and Mount Prospect police departments, and federal and local prosecutors are reviewing the case.

Authorities are determining whether federal charges will be filed.

Paporakis is being held in custody. His next court appearance is scheduled for Oct. 30 in Rolling Meadows.