The "official" list of twenty-three purportedly innocent inmates executed for crimes of rape and/or murder is probably not an accurate or complete list. While the information is interesting from a historical perspective (executions date from 1905 to 1984), there is little definitive evidence offered to support most claims. Nevertheless, this is the information being circulated by opponents of the death penalty:
Over 1,000 people have been killed since the death penalty was instituted.
Because innocent people will be killed. The more advancements in forensic science the more likelihood the accuracy of the evidence. WIth DNA, now innocent people who have been in prison for years and years have been freed. Innocent people have been killed due inaccurate evidence.
I'm against the death penalty personally unless the convicted asks for it. There have been lots of innocent people executed and 1 is too many. What is it were you? Imagine how you'd feel to be killed when you know you are innocent?
Death penalty opponents say there is no way to know how many innocent people have been executed in the US.
Less than one percent. Over the past century about 25 people have been executed in the US and then later proven innocent. Now we have DNA testing which takes away almost all doubt of innocence or guilt. And there also must be a unanamous vote for the death penalty. So now there is almost no way to be executed and then proven innocent.
Some people who had been killed using the death penalty have been found not guilty after the fact.
The UK abolished the death penalty in 1999. The last executions in Britain was in 1964- two men who were hanged for a murder/robbery.
it saves innocent lives
Capital punishment, or the death penalty, can serve as a warning to deter people from committing heinous crimes. It probably does dissuade some people from murdering, but not in every case. Some people see all forms of capital punishment as inhumane, while some think that some are more humane than others. It can provide closure to the grieving families of murder victims, but it causes further agony for the innocent families of the perpetrator.
many people are but nobody knows how many people
Yes, if you have a clemency or are proved innocent before the execution.
Actually, opinions on this vary. But the tendency, nowadays, is that a majority of people think that the death penalty is uncivilized. Some arguments against the death penalty is that it is used disproportionately against ethnic minorities (for example, black people in the United States), and that it is irreversible (and there have been many cases where people executed, or people who were planned to be executed, turned out to be innocent). For further arguments, both for and against the death penalty, I suggest you consult the Wikipedia article on "Death penalty".