What is the author’s main purpose in writing this article? To inform you of two homicide cases involving 14-year-old murderers and their sentences to either life in prison without parole or the death penalty. To convince you that convicting 14-year-old murderers to life without parole or the death sentence is unjust.
To explain the negatives and the positives of convicting 14-year-old juvenile killers to life without parole or the death penalty.
To persuade you that 14-year-old killers should indeed receive life without parole or the death penalty in retribution to the families of the victims.

it is an infinitive phrase with a subject.

in ray bradbury's short story "a sound of thunder", mr. eckels's fearfulness leads to drastic consequences for the rest of the world.

in the story, mr. eckels, who is a hunter, hires a time travel company to travel to the age of dinosaurs. although he is excited for the hunting expedition at the beginning, when they reach there and mr. eckels sees the tyrannosaurus, he feels frightened. as he is afraid of the tyrannosaurus, he steps off the path although he has been warned not to do it. by stepping off the path, the entire course of the future is affected: mr. eckart alters the future by stepping on a butterfly, which causes a new man to be elected president in the future. in that way, it is mr. eckart's fearfulness what triggers 'the butterfly effect' and what leads to drastic consequences for the rest of the world.