If Qaani has bought it, if , thinking on a 6D Chess level, perhaps that is Israel's response to the missile attack, coming about 48 hours afterwards? Maybe not, but it would a huge blow to Iran if it was true. He may well have not been present or was only injured in the attack. Certainly would explain why this explosion was a lot more force than the one that killed Nasrallah though, and apparently rescue teams haven't been able to get anywhere near the blast sight yet.