(NewsNation) — The employee who called in Luigi Mangione's appearance at a Pennsylvania McDonald's might face an uphill battle when it comes to getting the $60,000 reward promised.

The two-part reward — $10,000 from the New York Police Department and another $50,000 from the FBI — is the result of a dayslong manhunt for the man accused of shooting and killing UnitedHealthcare CEO Brian Thompson in New York last Wednesday.

Luigi Mangione's McDonald's arrest

Mangione, 26, was arrested in Pennsylvania on separate weapons charges, with New York prosecutors filing a second-degree murder charge against him just hours after his detainment.

As of Tuesday, he remained in a Pennsylvania jail and is fighting extradition to New York with his attorney, Thomas Dickey.

The arrest came after a patron alerted an Altoona, Pennsylvania, McDonald's employee of Mangione. The employee then called police, according to authorities.

Who gets reward for UnitedHealthcare CEO shooting?

There are some stringent stipulations surrounding reward money, meaning those involved in the accused killer's arrest might have some hoops to jump through.

FBI rules stipulate that tipsters' calls must lead to an "arrest and conviction." That requires extradition to New York, a trial and a conviction — putting a major delay on any payouts.

In larger cases, tipsters cannot nominate themselves for the FBI reward, meaning the worker might have to be nominated by an investigating agency to get the hefty check, according to the agency's "Rewards for Justice" page.

Then, an interagency committee reviews the nomination and passes it along to the secretary of state, who makes the final call.

Even after all that, the FBI stipulates that reward amount can vary depending on multiple factors — including value of information given, threat level, the risk faced by the source and cooperation, USA Today reports.

The NYPD's portion of the reward is granted through Crime Stoppers, which gives tipsters unique reference numbers, Unilad reports.

That number is vital in filing a claim with the NYC Police Foundation and the Crime Stoppers Board of Directors, who could approve or deny the tip depending on the circumstances surrounding the call.

The employee and customer have not yet been identified, and it's unclear which person would be eligible to eventually claim a reward if Mangione is convicted.

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