In 1982 he was arrested and subsequently convicted on drug trafficking charges.

subsequently 是由 subsequent（随后的）加上副词后缀 -ly 构成的副词。subsequent 来自拉丁语 subsequi，由 sub-（在...之后）和 sequi（跟随）组成，意思是"随后发生的"、"接着的"。 subsequently 在句中表示时间上的先后顺序，指"之后"、"随后"的意思。