On March 5, 1770 it was a cold, snowy day when a lone sentry was attacked by a mob of 400 people with snow and ice. The sentry called for help and Captain Preston came with 6 guards. The mob was led by a 6 foot tall, African Native named Crispus Attucks. The soldier feared for his life and fired at the crowd. Five people were killed including Crispus Attucks who was the first casualty. Sam Adams called it the Boston Massacre. A trial was held and the soldiers needed an attorney. John Adams, Sam Adam s cousin, took the case, saying a lawyer should be the last thing an accused man should lack in a free country. Preston was found not guilty along with most of the soldiers. Two were found guilty of manslaughter and the Letter M was pressed on their thumbs after mass punishment.