Do you think that there's a chance that Malee and Chais are related?
Yes and no.
I don't believe that Chai's death was related to Malee's in any way, but I would not be surprised if Chai played a part in Malee's.
Now Chai and or Bamboo are know carriers for EEHV, as they lost Chai's calve Hansa to it. What this means of course is that periodically whichever elephant has it will shed the virus, which is when it is open for contagion to other elephants. Now being from Dickerson Park it is likely that Asha and Chandra are already carrying some strain of EEHV, however Chai/Bamboo could have brought in a different variant of the virus that ended up killing Malee.
Now like I said, this is nothing but pure conjecture on my half, but at the same time, I feel like sending Chai and Bamboo to OKC was not a good idea.