Death Row killer set to become second inmate executed by new 'agonising experimentation'
![Death Row killer set to become second inmate executed by new 'agonising experimentation'](https://i2-prod.dailystar.co.uk/incoming/article32186009.ece/ALTERNATES/s615/1_Death-row-prisoner-to-be-executed-with-grisly-never-before-tried-technique-as-critics-slam-human-ex.jpg)
Alan Eugene Miller is set to become the second death row inmate executed by nitrogen gas, a new method that's been dubbed 'agonising' and likened to 'human experimentation'