If he had information dangerous enough worth killing him over, they would have done it before he left Russia.
Russia traded 3 spies (including him) for 10 spies from the UK. This could be a reason not to kill him.
Furthermore he had a trip planned to visit Russia shortly before the incident. Why the fuck would they attack him on UK soil and create a very public international incident when they could have just waited a week and quietly do it on their own turf?
I hadn't read that, do you have a link?
Maybe there was something he was planning on doing before coming to Russia that they didn't want him to do?
Finally, if you know anything about Novichok, you would know if it was that, he would be dead 100%, along with first responders and bystanders.
A reported case of accidental exposure of a Russian physicist to Novichok in 1987 described the following events:
He staggered out of the room, his vision seared by brilliant colors and hallucinations. He collapsed, and the KGB took him to a hospital.
By the time he arrived his breathing was labored. In another hour, his heart would have stopped. His entire nervous system was gradually ceasing to function.
The physicist was lucky. The hospital he was taken to, the Sklifosovsky Institute, includes the nation’s top center for poison treatment.
There, Dr. Yevgeny Vedernikov saved his life.
But the scientist was at the edge of death, unaware of his surroundings, for 10 days. He couldn’t walk for six months. He was dogged by depression and an inability to concentrate. He found it difficult even to read. To this day his arms are still weak, and he has never been able to return to work.
Although he survived, the gas left him with permanent disabilities.If he had information worth killing him over, he would never have been traded. Even assuming he did, how does it make sense to let him wander around the UK for years before killing him, giving him plenty of time to spill the beans? Why not kill him in Russia? Why use a rare neurotoxin almost exclusively used by Russia forming an obvious link? This is what investigators call "an orgy of evidence" and is indicative of a frame up.
Do you really believe spies don't know governments are willing to kill them? That premise is retarded and more based on TV and movies than reality. Spies enter into their line of work knowing full well they are at risk of assassination or execution, meaning killing him to "send a message" is completely asinine. The key word in your scientist's exposure example is "accidental". None of this narrative adds up, except to people that think they are Ethan Hunt.
There are however clear motives for the UK to attack Skripal, and make it look like the Russians did it.
"At the time when Pablo Miller was recruiting spies for Great Britain, Christopher Steele was the head of MI6 in Moscow. After returning to London and retiring in 2009, Christopher Steele founded private intelligence corporation "Orbis Business Intelligence." Allegedly, Pablo Miller, a former recruiter, curator, and now one of Skripal's friends and neighbors, got a job at Orbis.
Therefore, when Christopher Steele received an order for fabrication of the "dossier" on Trump, the fate of an unsuspecting and innocent Skripal was sealed."
https://www.americanthinker.com/articles/2019/03/the_trump_dossier_and_the_poisoning_of_sergei_skripal.htmlAs we now know, the FISA warrant which was used to start the Trump Russia collusion investigation was completely based on the fabricated dossier created by Steele. Given their relationship, this is a glaringly obvious motive to attack him and frame it as a Russian attack. Using this method, they not only get to cover up embarrassing fabricated evidence from one of their own spies, but have a damned good excuse to ratchet up Russian sanctions.
Related:
https://qz.com/1224822/a-linkedin-bio-reportedly-connects-sergei-skripal-donald-trump-and-christopher-steele/