Inhumane killing process during capital punishment [US]

2018-03-17 10:37:26

Who decides , the way capital punishment should be delivered ? Do specific states [in US] decide the process ? and why don't states / federal government mandates the process through which judicial capital punishments should be delivered to make the process more humane ?

Killing through fire squad ( such as in case of Ohio - https://m.youtube.com/watch?v=BOKYCqee2YY ) or hanging a person is completely Inhumane.