The American father-son duo charged with helping former Nissan Motor Co. Chairman Carlos Ghosn flee trial in Japan a year and a half ago pleaded guilty in a Tokyo court on Monday.

Appearing for the first time since they were extradited to Japan from the U.S. earlier this year, Michael Taylor, 60, and Peter Taylor, 28, listened as the prosecutor read out the charges. Asked by the judge whether there was anything wrong with the charges, Michael replied "No, your Honor” while Peter said "No, ma’am.”

The duo, dressed similarly in dark jacket and pants, white shirt with no tie and plastic slippers, arrived in handcuffs. Michael appeared frail, his hair thinning and voice raspy. His son appeared stronger and spoke with confidence. Both have spent time in solitary confinement.