The passage describes a tragic event where John F. Kennedy Jr., son of former US President John F. Kennedy, was involved in an accident that resulted in the death of Mary Jo Kopechne. After the incident, Kennedy suffered from concussion and shock, which led to disoriented thoughts and irrational behavior. He eventually reported the accident to the police and pleaded guilty to leaving the scene of the accident. The passage also touches on the idea of Kennedy resigning his seat in the US Senate due to the public scrutiny surrounding the event.