Richard Marx, an American pop/rock singer, shared his crazy experience handling an unruly passenger on his Facebook. 

On December 21, Marx posted several photos and posts about his experience while flying on Korean Air. 

He called the flight crew 'ill-equipped' because the ordeal lasted for hours while the flight attendants were unable to subdue the 'psycho' passenger who hit other passengers as well as the crew members. The singer's wife took photos of Richard Marx himself helping to handle the violent man, 34-year-old Lim Bum Joon who is the son of a big chaebol (corporation) executive in South Korea. He can be seen spitting on a male crew member's face while he is being retrained; later he also kicks a female flight attendant in her stomach. 

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Lim was arrested when the plane landed at Incheon International Airport for violating flight safety laws and for assaulting the crew members. The investigation as to what exactly happened is currently taking place.