Arthur Patterson's extradition to South Korea was approved and culminated with his arrival at Incheon International Airport, Sep. 2015.

In January 2016, the prosecution sought a 20-year prison term for Patterson, which under Korean law is the maximum sentence able to be handed down to suspects aged 18 or less at the time of their crime.

[3] On January 28, 2016, Patterson was found guilty of the stabbing of the victim, Cho Jung-Pil, and was sentenced to 20 years behind bars.

Patterson is still adamantly denying the charges and continues to blame Lee for the stabbing death of Cho Joong-Pil.

The appeal will deal with issues such as evidence accepted by the court and its legitimacy, and possible mistakes in the application of law.