What do you know about mercy killing?

Some times out of pity,drugs can be administered to a patient with terminal disease or a prolonged illnes to end the person's life and prevent the person from suffering further
>>>>>>>>>>>Mercy killing  the killing of someone who is very sick or injured in order to prevent any

further suffering.<<<<<<<<<<< It can also be referred to as the euthanasia  which is the act of putting to  

death painlessly or allowing to die, as by withholding medical measures from a person or animal suffering  

from an incurable, esp. a painful, disease or condition.>>>>>>>>>>>>
>>>>>>>>>the word "Euthanasía" is a Greek word which means good death(eu=well or good and thanasia=death).It is done to stop pains and further suffering of a patient.It can be voluntary or non-voluntary.

 Voluntary Enthanasia.This is done in agreement with the patient.In this case, the patient must be the one 

to approve such before the doctor carries it out

Non-voluntary Enthanasia.In this case,it is done without the patient consent.some conditions may provoke 
one do it  just to let the pains out.It is usually considered as a murder.Also it can be involuntary which means 
it is done against the patient's will.>>>>>>What is you own view about the mercy killing???Do you think it is a good thing especially when it comes to an that has been deteriorating or do you think that the patient should be left alone to suffer?????