Givin how thin the sourcing is on this (basically just a random anon “Hamas official”) the WSJ was reckless in publishing this without stronger confirmation. Fanning the flames right now on such thin foundation is not helping anyone.
The article clearly states that the US has no evidence to support that Iran was involved and Hamas officially stated that they did this on their own. Everyone just wants to find a reason to invade Iran.
They quote senior Hamas and Hezbollah officials and:
A European official and an adviser to the Syrian government, however, gave the same account of Iran’s involvement in the lead-up to the attack as the senior Hamas and Hezbollah members.
For me it’s still thinly sourced. The goal of these terrorists clowns, Hamas and Hezbollah, is to goad into a wider conflict and make this last as long as possible. These articles are just doing the job for them.
You seem to want to prove something you can’t. I don’t know why. If you want the conflict to widen, it probably will do so on it’s own. Some people just like to see blood I guess, as long as it’s not theirs.