What is the name of the deadly riot that occurred on March 5, 1770, when five people were killed after British soldiers fired on a mob that was harassing them?

A trial later that year acquitted six of the soldiers after 2½ hours of deliberation. Two of the soldiers were found guilty of manslaughter because there was overwhelming evidence that they had fired directly into the crowd. Crispus Attucks was an African American man killed during the Boston Massacre and believed to be the first casualty of the American Revolution.