http://www.bbc.com/news/world-us-canada-27215508
US death row inmate sentenced for murdering a teenage girl 15 years ago . During drug administration one of his veins split and the drug cocktail did not mix properly. What followed, according to witnesses, is nothing less than a cruelty show with the inmate rattling, struggling while in a state of near-torture.
Leaving talk of legality or ethics aside, one would think that after all these years , the pen system has a humane way of putting people down. Turns out it's not.