No Reason Whatsoever!?

 Episode:NO REASON for the Medical series HOUSE.

Dr. Gregory House was busy in his conference room together with his Diagnostic Team when suddenly a stranger came into their room abruptly and shot Dr. House on his stomach then on his neck. Dr. House woke up in the ICU, Dr. Cameron was guarding him through the recuperation process. Dr. House woke up and hurriedly tried to walk down the hospital hall to see Dr. Curdy but Dr. Cameron stopped him. Eager to see Dr. Curdy (Dr. Cuddy)  and complained about something. Dr. Curdy (Cuddy) was actually happy to see Dr. House who after the operation was walking fast and not feeling the kind of pain he was complaining in previous episodes, so the drugs could have been helping him. But throughout the scenes he never really knew or aware whether what's happening to him is real or he is just hallucinating from the meds he consumed and the patient he thought in the next bed was his assassin. Only in the last few minutes of this episode he finally realized that the one whom he killed (using operating robot at the OR) was his assassin actually not the patient who was in the ICU room. 

What's the lesson for this extraordinary story?

Will a human being kill another human for NO REASON at all?

Animals kill another animals or human beings for self defense and for food but most of the time it's prey for food. Humans kill for prize or rewards, not just for food, self-defense and vengeance. 

HOW ABOUT DURING WAR? How do you justify that killing another human  is an option? 

Think about it.