Suicide

Should people with incureable or terminal illnesses be allowed to kill themselves?

Should they be allowed to have an 'injection' to put themselves to sleep if they do not want to go through the pain that they are going to.

Should people that are going to become unable to look after themselves be able to be 'killed' so that they do not have to suffer if they sign paperwork to do so?

Or, as it is religiously, would you class it as wrong and rather have them harm themselves with drugs and knives than be put to sleep on their own terms?

Should assisted suicide be a crime? Is it murder?