NEW YORK CITY — Accused CEO killer Luigi Mangione appeared in a Manhattan courthouse for the second day of pretrial evidence hearings.

Mangione has pleaded not guilty to a slew of state and federal charges, including murder. In September, a judge dropped two state terrorism charges against him.

Here’s what we know so far:

1. Mangione’s Attorneys Want Certain Evidence Excluded From Trial

Defense attorneys on Monday argued that certain evidence should be excluded due to how they were obtained by law enforcement.

Evidence includes statements Mangione made to police officers when he was apprehended. The 27-year-old’s attorney claim police failed to provide Miranda warnings and claim they did a warrantless search of his backpack after he was handcuffed. Inside the backpack were a gun with a 3D printed receiver, ammunition and a red notebook.

2. First Witness Called To Stand/Footage Of Killing Shown

NYPD Deputy Commissioner of Public Information Sgt. Chris McLaughlin was the first witness called to the stand was asked to surveillance images obtained after the shooting.

The images include Mangione standing at the counter of a Starbucks wearing a facemask and photos of him inside an Upper West Side hostel, as well as a Facebook post showing a man on a bicycle and a man with a gun.

Prosecutors also showed video footage of the moment Brian Thompson was shot. An additional witness worked for a security camera company that had devices installed at the McDonald’s in Altoona, Pennsylvania, where Mangione was arrested days after the shooting.

3. Mangione’s Facemask Stood Out In Pennsylvania McDonald’s

A responding officer on Tuesday testified that the 27-year-old stood out because he was wearing a mask, which was uncommon in the area.

““Yeah, we don’t wear masks,” Officer Joseph Detwiler told prosecutors. “No one here wears a mask, and I knew he had a mask on, so he had to be the person that we were called there for.”

Detwiler added that he had seen images of Mangione several times on Fox News.

Prosecutors also played audio of 911 calls from the McDonald’s. Patrons recognized Mangione by his bushy eyebrows — the only thing they could over his face mask.

4. Never-Before-Seen Footage Of Mangione’s Arrest

Prosecutors showed the courtroom body cam footage of two officers approaching Mangione in the McDonald’s.

The 27-year-old intially gave police a false name, “Mark Rosario’’ from New Jersey and gave them a fake ID.

After running the identification through their system, the cops came back to Mangione and told him he was “under official police investigation” after giving them a fake name.

What’s your real name?” one of the officers could be heard asking.

“Luigi … Mangione,” the 27-year-old said.

“Why’d you lie about your name?” the officer asked.

In addition, the cops had asked him if he’d been “up in New York recently.”

Mangione said: “Um, yes, sir.’’