Never heard of that paper...
As I've heard Putin was informed of the attack and told to get out of the way, rumors are circulating the two agreed upon the attack as Putin wasn't a fan of gas either. ~shrug~
The
Express is an English right-wing jingoistic newspaper. It is a reliable source of information if not the spin.
The Russians gave their assurance some time ago that it would remove all declared Syrian gas stock. For Trump to claim that the attack by the Syrians involved the use of a nerve gas has questioned Russia. It must be admitted that Trump acted quickly and there is truth in the Russian claim that such action must have been planned for some time. This would not be unusual because the U.S. military has plans at-the-ready in preparation for any eventuality.
Putin must be furious to witness the attack on one of his client states in the Middle East and home to the Russian Mediterranean fleet. It is quite believable that he will condemn it as an attack on a United Nations sovereign country and likely to help radical terrorist forces in Syria. As for future co-operation between the United States and Russia in the Middle East, all bets are off now. The United States, in the Russian view, by this attack, has placed itself in the position of a supporter of terrorism.