Tahoe27 wrote:But it's still not totally out of the question, imo. If you wanted a family member dead and didn't want to be considered...
Let's say, for the sake of argument that it WAS his brother. What other parts of the Z series did he commit? Or, rather, what other parts did he have to commit, in order for this to make sense?
The three "bloody shirt" letters must have been him. The 340 must have been him too - otherwise the coincidence is just too big to be believable.
To me there is a very clear connection between ALL of the earlier Z communications (going back to the three-part cipher) and the Stine letter + follow-ups. So, I'm inclined to think that he would have had to be:
At the very least responsible for taking credit for LHR.
Responsible for BRS
Responsible for every Z letter between the three-part and Stine AND responsible for the bus bomb, the 340 and Belli. Arguably also a couple of more letters, post Belli.
We can exclude Berryessa, it being technically much harder to connect.
As you say, crazier theories have been launched. But to me it's nevertheless pretty crazy to go through all of the above simply in order to create some kind of smoke screen. If Stine's brother wanted Stine dead, he had the perfect smoke screen right at his fingertips: Cabbie mugging gone wrong. Happened all the time. No need to get insanely creative and pin it on a serial killer.