It is possible, and of course impossible to prove it didn't happen like this. But it is much more likely he just died, just like anybody else who got publicly executed would.
If you think this might explain the account of the resurrection, note that the account emphasizes that the apostles doesn't recognize the resurrected Jesus. If it was actually Jesus who had survived, surely they would recognize him. Furthermore the resurrected Jesus does not seem to have an ordinary physical body - he is able to walk through walls for example. Given this I don't think a "not clinically dead"-theory explains anything.