I don't think any state should have the right to sentence someone to death.
War is a different matter but I'm against the death penalty in any peacetime situation.
I'm with Purple on this, I don't think society has the right to take a life no matter how evil and inhumane the act is.
At the same time I do think that life sentences are too light, and certainly a misnomer. Dependent on the country a life sentence can mean anything from 15 to 40 years. To me that is not life. I'd much rather see the most evil people in society punished by living in a 6 by 8 cell for the rest of their living days, without all the luxuries that prisons entail these days; in cases such as the above mentioned I think that punishment and not rehabilitation should be the main objective.