What led British soldiers to fire on Boston's townspeople on March 5, 1770?

A group of American colonists gathered around the British soldiers and taunted them because the British soldiers were sent to the colonies to enforce taxation policies; these policies were unpopular with the colonies. The taunting escalated into throwing objects and snowballs at the British soldiers, which led do the discharge of a rifle and other soldiers shooting into the crowd.

American colonists gathered around British soldiers and taunted them because the British soldiers were sent to the colonies to enforce taxation policies. The taunting started to create rowdiness and eventually escalated into throwing objects at the British soldiers, which led to the discharge of a rifle and other soldiers shooting into the crowd. If I'm not mistaken, this was known as the Boston Massacre.