A new documentary is set to explore the psyche of Luigi Mangione, the 26-year-old who is accused of fatally shooting UnitedHealthcare CEO Brian Thompson.

On Thursday, Investigation Discovery released the trailer for “Who is Luigi Mangione?” an hourlong documentary that relies on commentary from those who know Mangione, as well as a criminologist, embattled New York City Mayor Eric Adams and New York Police Department Chief of Detectives Joseph Kenny, to speculate about what led to the killing.

The doc premieres Monday, Feb. 17, on ID and will stream on Max.

“The special aims to unpack Mangione’s background and track his trajectory to understand what led him to land behind bars,” ID’s synopsis reads. “Through narration of his digital archives, including his own online posts and Reddit discussions, those close to Mangione bring comprehensive insight into his personality, health struggles and chronic pain, offering a deeper understanding of his mental state leading up to the alleged crime.”

“People are donating; they are holding signs up outside. Young women are writing him letters and throwing him kisses,” Casey Jordan, a criminologist and attorney, says in the trailer. “And (Mangione) thinks, perhaps not incorrectly, that the American public will agree with him.”

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Mayor Adams also gets a soundbite in the two-minute teaser: “Being the mayor, radicalization strikes terror and anxiety.”

Luigi Mangione allegedly felt ‘hostility’ toward health insurance industry: FBI

Mangione, an Ivy League graduate from Maryland, was arrested Dec. 9 and charged with shooting and killing 50-year-old Thompson, a father of two, in Midtown Manhattan on Dec. 4. According to the federal criminal complaint against him that cited evidence from an alleged handwritten notebook, Mangione harbored “hostility towards the health insurance industry and wealthy executives in particular.”

Mangione faces state criminal charges in New York and Pennsylvania – where he was arrested – as well as federal charges. On Dec. 23, he pleaded not guilty to 11 criminal charges, including one count of first-degree murder in furtherance of terrorism, in New York.

Despite all of Mangione’s legal trouble, which includes the possibility of facing the death penalty with his federal charges, many people have taken to social media to express their obsession with Mangione or relate their frustrations with the country’s healthcare system.

Experts discuss:Many had little sympathy toward the UnitedHealthcare CEO. Why?

Speaking to USA TODAY in December about the memes and ridicule that spawned from Thompson’s killing, licensed clinical social worker Gina Moffa said, “The public is feeling very unheard, uncared for and unseen in our plights.”

“We live in a world where it seems the rich get richer on the backs of others, and it’s hard to garner empathy when we feel so (deprioritized) in society,” she said.

Pennsylvania Gov. Josh Shapiro is among those who have denounced glorifying Mangione.

“Some attention in this case, especially online, has been deeply disturbing, as some have looked to celebrate instead of condemning this killer,” he said during a December news conference.