I am pretty sure from my subjective point of view and "cases" I'd agree that maybe yes. Although, we've got to have in mind that if we sentence people to death penalty as Gambi says - first, people will "deserve" to die for X reasons... then in the future for Y reasons. We can't set the limits nor we can control who makes these either. There's people who are more harmful than helpful - but I believe our aim is towards to "Reforming/rebuilding/remaking" these people to be a more "thinking" and/or "sentient" being and to fit more into our "common" society. As in, help each other and build together. This way, we're only going to implement violence with even more violence. So, once again as Gambi said - it's a tough one and a hard decision. I believe both ways could be right - but there needs to be a balance. Although, I'm not denying that some people don't "deserve" to die - but I don't think they should actually die. Not quite sure and doubting this one... it's indeed very complicated and can be seen from many perspectives - the thing is getting a balance between the two.
Subjectively, yes, I believe there are many people who "deserve" to die, but that does not mean be they ought to die.
The subjectiveness of "deserve" in and of itself tells us that no one should be put to death. If we are talking about capital punishment, I am of the opinion that the justice system is too fallible to dole out such a sentence. Even if a justice system were somehow 99% correct or in cases with apparent infallible evidence, the precedent cannot be allowed.
Tough one. Word "deserve" excludes using any objective facts, but I'm still sure of my opinion: yes, there are. We are basically living only for 4 F's, but we've actually made it to something like next level of existance thanks to power of our brains. Therefore started the responsibility for our actions and there simply are actions that deserve to be punished by death. Furthermore, the highest form of punishing people is torturing them, death penalty is making sure they will never do anything harmful, so it has its grounds.
As others identify, this is somewhat of a subjective matter.
When we view some as "deserving" to die, we have opened up the gateway to say that any human flaw should be a matter to bring death and destruction.
We ignore the possibility of redemption. We imply the right of judging, which would come from some clear superiority. Such superiority does not exist. We ignore the causal factors that cause bad behavior, and we ignore shared and social responsibility. We blame individuals instead of collective problems.
This flawed approach is a colossal part of our moral paucity and global crises.
Form my point of view I'd say that there ARE people that deserve to die and are alive. However, as we can't bring back people that deserve to live but are dead. So the people that deserve to die SHOULDN'T die when thinking that way.