Final answer:
The meeting was held to explain the eight-hour movement and its incidents, but it turned violent when a bomb was thrown, causing casualties.
Step-by-step explanation:
The meeting between Lt. Rahms, Corrie, and her family was for the purpose of explaining the general situation of the eight-hour movement and shedding light on various incidents in connection with it. The meeting was intended to be peaceful, but a large police presence created tension. Unfortunately, the meeting took a violent turn when someone in the crowd threw a bomb, resulting in the death and injury of several people.