Is it Murder?!!

I was reading the other day about people fighting the assisted suicide reforms. How someone was being charged with manslaughter for helping a dying person out of his misery. It occurred to me than we could turn this arguement around and use it as a defense.
Here is how I see it. Every murderer can claim he was just helping his victim commit suicide. There would be no murder just assisted suicide. The only difference is some victims just didn't know they wanted to die.
There are so many people I want to assist with their suicides. Bashir in Sudan, Mugabee in Zimbabwe, Osama, 3/4 royal family in Saudi/ etc....goes on and on.