This is hardly a whodunnit. If the Russians wanted the Nordstream 2 pipeline to stop, they could press a button on their end, so it’s obviously not Putin. The continental Europeans, whether they admit it or not, are desperate to oil so it’s in their interest that pipeline remains functional. That leaves two suspects: the Ukronazis (who are trying to breach reactors with artillery to poison Europe and drag it into war-so pipeline bombs are nothing) or, our favourite villains, the Anglo Saxon Elites (CIA/Mi6) who, by shutting down N2, will force all gas through Ukraine where Zelensky gets to skim off gas and collect transit fees to pay for endless weapons.
Must admit Mi6 was my first guess
It's a fact that the Euro-greenie leaders have used their "green" beliefs to control their masses.
It's a fact that the Euro masses are getting tired of hearing "blame the Russians" over the natural gas shortage. They're starting to fuss at the Euro leaders.
It could be that the Euro leaders see Nortstream 2's operation as undermining their control over their masses. If it's shut down, even temporarily from the explosions, they can say, "See? Natural gas isn't as dependable as you think. We need more wind and solar."