"He is the nicest of nice guys who has done so much to help other people,” fellow taxi driver Kasim Jameel told the newspaper. “He is just a normal bloke, an everyday taxi driver who wanted to do good. We are thinking about him all the time and praying that he will be allowed home to his family."
"He was taking over old ambulances, just helping out as much as he could,” a close friend told the Telegraph newspaper. "There were a few of them that went out with him. They were just a group of mates that started it all off. They were supposed to be over there for about six months, but he was kidnapped just a few days after he left."
Henning was identified as the next ISIS victim at the end of the beheading video of British aid worker David Haines released Saturday.
He had reportedly previously traveled to Syria as part of two similar humanitarian aid convoys organized by the small, informal volunteer group Aid 4 Syria and the UK Arab Society. BBC journalist Catrin Nye met Henning while making a documentary about such convoys to Syria and told the Guardian how the first trip to Syria moved Henning to do more.
"It had been a life-changing experience," Nye said. "He had handed out the goods. He described holding the children ... and how that really affected him. He told me he had to go back."
Henning even permanently inked his commitment to the cause, as convoy organizer Jameel told The Bolton News: “He loved the cause so much that when he went on holiday with his family, he had a big tattoo across his arm, saying, ‘aid for Syria.’ He was that dedicated.”