Photos | With laughter, this was Luigi Mangione’s attitude as he pleaded not guilty to the murder of the multimillionaire CEO in the USA.

was the court official’s question to Luigi Mangione, the young man accused of murdering UnitedHealthcare CEO Brian Thompson. "The defendant’s attitude surprised those present and social network users, who have commented on the reaction to the trial held this Monday, December 23, when Mangione, 26, appeared before a New York court to face the charges against him…