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(LAKELAND, Fla.) -- A Florida woman was arrested and charged this week after police say she ended a phone call with her health insurance provider with threats that mimicked wording associated with the suspected UnitedHealthcare CEO shooter.

The incident occurred Tuesday when Briana Boston, a 42-year-old woman from Lakeland, was speaking with a representative from Blue Cross Blue Shield after she had been told that her medical claim was denied.

In an arrest affidavit obtained by ABC News, police said that near the end of the recorded conversation with the insurance provider, Boston can be heard saying, "Delay, deny, depose. You people are next."

Boston's apparent threats nearly echo the words that were engraved on the bullet shell casings that authorities recovered from the scene where UnitedHealthcare CEO Brian Thompson was fatally shot earlier this month.

Those engraved words were "deny," "defend" and "depose."

Boston's words and the casings both hew closely to the title of a 2010 book: "Delay, Deny, Defend: Why Insurance Companies Don't Pay Claims and What You Can Do About It."

The book was written by legal scholar and insurance expert Jay Feinman, a professor emeritus at Rutgers Law School in New Jersey. It explores abuses of auto and homeowners insurance to "avoid paying justified claims," according to its summary.

Luigi Mangione is a suspect in the killing, which has catapulted the nation's health care industry into the spotlight. Mangione faces second-degree murder and a slew of other charges in both Pennsylvania and New York.

When Lakeland Police confronted Boston about the perceived threats, she apologized and said that she "used those words because it's what is in the news right now," according to the arrest affidavit.

Boston told authorities she does not own any guns and is not a threat, but went on to say that health care companies "deserve karma" and that they are "evil," according to the document.

"Boston further stated the health care companies played games and deserved karma from the world because they are evil," police said in the affidavit.

ABC News has reached out to Blue Cross Blue Shield for comment.

Following the investigation, Boston was charged with threats to conduct a mass shooting or act of terrorism and booked at a jail in Polk County, according to police.

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