Perhaps it is time to get rid of the death sentence in the USA

Source: The Economist

I quote from an article in The Economist:

The Western world’s chief executioner, America, is putting fewer people to death, too. Last year it executed 35; even if every execution scheduled for this year were to be carried out, which is unlikely, the total would be no more than 33. Of the 31 states that still have the death penalty, half have executed no one since 2010. In May Nebraska passed a law repealing it, the 19th state to do so—and the first conservative one for many years. 

In 1994 80% of Americans said they endorsed the death penalty in principle. The Pew Research Centre reckons that fewer than 60% do so today—and notes that young Americans are less keen than their elders. Blacks are solidly against, as are a small majority of Hispanics. Even the Supreme Court’s recent pro-death-penalty ruling gave comfort to abolitionists by providing a chance to rehearse their case. The death penalty, argued one of the four dissenting judges, Stephen Breyer, is “highly likely” to violate the constitution. Evidence suggested that innocent people, he wrote, had been executed. People on death row had frequently been exonerated. The system was blighted by racial discrimination. Delays between sentencing and executions may violate the eighth amendment, which bars cruel and unusual punishment. And he noted that it is not proven, anyway, to deter crime.

I am no expert, but as I understand the evidence the death sentence costs a lot of money, and there is no convincing evidence that it deters capital crimes.  Lets get rid of this punishment which looks to me to be an abuse of human rights.