Members of Congress are expected to:

The duties carried out by a Member of Congress are understood to include representation, legislation, and constituent service and education, as well as political and electoral activities. The expectations and duties of a Member of Congress are extensive, encompassing several roles that could be full-time jobs by themselves. Despite the acceptance of these roles and other activities as facets of the Member’s job, there is no formal set of requirements or official explanation of what roles might be played as Members carry out the duties of their offices. In the absence of formal authorities, many of the responsibilities that Members of Congress have assumed over the years have evolved from the expectations of Members and their constituents.

their just depressed and think that if they give pain to some one else the pain goes away from them. which it doesn't.

answer:

they didn't want to get killed by the armed forces

explanation:

there was a lot of people there and some of the us armed forces had guns and they didn't want to die