im sure if you shoot someone 4 times in the head with a 44 they will be dead in seconds. no question about it. assuming a 44 isnt used in in executions another gun with a large bullet should do the trick nicely.
i dont see how theres never enough certainty of guilt.
for instance, what if u see some guy raping some girl in a house then he ends up shooting her in the head, in plain sight of some cameras and witnesses. he flees the scene but gets quickly arrested by the cops. theres GSR on his hands, a matching bullet and 5 witnesses saw him do it. as well as security footage and motive( ex lover perhaps or something)
at his trial he denies doing it cause well.. hes a psychopath, and he is found guilty, and given the death penalty.
now thats a lot of evidence. im not saying all cases are as cut and dry as the example above. but a case like that should have no appeals.
im still for the firing squad, although the guillotine would be a close 2nd.
Personally speaking, but I'd rather be put in front of a firing squad than to be lethally injected. Then again, I'm not a criminal, unless you're referring to my criminally good looks.