Part 3/6:
Sources involved in the execution reported that Grayson exhibited irregular bodily movements during the procedure, which some attribute to involuntary muscle contractions associated with the nitrogen hypoxia process. Observers noted that there were discernible breaths taken by Grayson, with time intervals extending to 18 seconds between breaths. Such reactions have raised further questions about the humane nature of the execution method, as reactions can vary widely among those being executed.