Historians often rely on both primary and secondary sources when supporting an argument, since it's important to use secondary sources to put the argument in context, and primary sources in order to make an original point.
Here's the definition, it might help: a state in which the supreme power rests in the body of citizens entitled to vote and is exercised by representatives chosen directly or indirectly by them.
Answer:
Initially it was thought that he had fallen victim to exposure or exhaustion while crossing the Alps and died of freezing, but X-ray examination in 2001 showed that an arrowhead was lodged in the Iceman's left shoulder, suggesting that he had likely bled to death after being shot.
