1) The document is a transcript from an interview with Bill Garrison, whose son John was murdered. Garrison describes his plans to kill John's murderer when visiting him in prison.
2) Garrison recounts meeting with the probation officers and convincing them to let him meet the murderer. He had planned how he could kill the murderer using pressure points in his throat.
3) During the actual meeting, Garrison towers over the smaller murderer and contemplates killing him. However, Garrison realizes the murderer is "nothing" and shakes his hand, feeling a weight lift off of him. He tells the murderer about the impact of John's death on his family.