Of course it was normal life in the Islamic State, because the Islamic State adhered scrupulously to Sharia within its domains. And crucifixion is a Sharia punishment, based on the Qur’an:
“Indeed, the penalty for those who wage war against Allah and His Messenger and strive upon earth corruption is none but that they be killed or crucified or that their hands and feet be cut off from opposite sides or that they be exiled from the land. That is for them a disgrace in this world; and for them in the Hereafter is a great punishment.” (Qur’an 5:33)
“Sugar Land Islamic State group member speaks from Syria,” by Jacob Rascon, Click2Houston, January 15, 2019:
SUGAR LAND, Texas – The Houstonian who applied for a job with the Islamic State group and was captured in Syria recently spoke about his experience in an exclusive interview with NBC News Chief Foreign Correspondent Richard Engel.
Warren Christopher Clark graduated from the University of Houston in 2008 with a political science degree. He went on to be a substitute teacher in Sugar Land….
“I wanted to actually go see exactly what the group was about and what they were doing,” Clark said. “I saw some people being executed publicly; I saw some crucifixions. You know, that’s just normal life there.”…
“I am looking to get a position teaching English to students in the Islamic state,” Clark wrote in part….
“I was born and raised in the United States and have always loved teaching,” Clark also wrote….
When pressed about why he joined Islamic State group if he knew they were responsible for brutal killings, he responded in part: “I think, you know, with the beheadings, OK that’s execution. You know, I’m from the United States. From Texas. They like to execute people too.”