The man who allegedly killed a mob boss in Staten Island reportedly made a court appearance on Monday with messages supporting President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE written on his hand.

Anthony Comello, 24, was arrested and charged last week in connection with the killing of reputed Gambino crime family boss Francesco "Franky Boy" Cali.

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He appeared in a New Jersey court on Monday and flashed a pair of pro-Trump slogans written on his left hand in the direction of journalists, according to The Associated Press.

According to the AP, the messages were "MAGA Forever" and "United We Stand MAGA," references to Trump’s 2016 presidential campaign slogan, "Make America Great Again."

Another slogan written on his hand said "Patriots In Charge." He also reportedly drew a large circle in the center of his palm. It remains unclear why he drew the circle.

Brian Neary, Comello's lawyer, declined to comment to reporters on the writing Comello's hand. Asked what was on the suspect's hand, he reportedly replied, "Handcuffs."

The AP noted that Neary also declined to comment on whether Comello maintains his innocence. He referred other questions from the AP to Comello's Manhattan lawyer, Robert Gottlieb, whom the news service said did not return two requests for comment.

Cali, 53, was shot and killed outside his Staten Island home on Wednesday. Police have said Cali was shot 10 times, according to the AP.

Cali was referred to by federal prosecutors as the underboss of the Mafia's Gambino family in court filings from 2014, the AP added. He reportedly rose to the top position in the family after that. However, he was never charged with leading the gang.

Police have not indicated if his death was a mob hit or related to something else.

Comello agreed to be extradited to New York during the court appearance on Monday. New York Police Department Chief of Detectives Dermot Shea said Saturday that Comello would be formally charged with murder once the extradition occurs, CNN reported.