How did Samuel Adams get on the King's most wanted list?

First of all, Adams was a politician, he was infuriated by Parliament and their refusal to represent the colonies in their meetings. Furthermore, he was an avid publicist of the Sons of Liberty, a patriot group that fought against British occupation, famously known for the Boston Tea Party. He frequently published articles that exposed the brutality of the British regulars in Boston. He was recognized for treason and the King did not like the trouble that was brewing.

Samuel Adams was very vocal about America gaining it's freedom from England. He wrote numerous letters that were shared with the American public. He also was an instigator by telling those who rebelled against the Stamp Act what to do to make an impression on the British. He reminded all that the Colonies were being taxed without legal representation.