Cause of death--Kamuela Searle?

It has long been reported that Kamuela Searle died as a result of injuries suffered when an elephant slammed him to the ground during the filming of “The Son of Tarzan” (192?). I found a fragment on a Tarzan site once reporting that for many years Searle’s brother tried unsuccessfully to refute this, sating that Kamuela died of cancer. Alas, I can no longer find the site. Anyone know the definitive answewr, or perhaps could point me in the right direction?

Sir

Some people seem to think the incident with the elephant was a plan by the director of the film to kill Searle and make it look like an accident. Apparently Searle and the director were both in love with the same woman. See http://www.sstar.com/treasure/dvo-21.htm

I should point out that IMDb (generally a reputable source) repeats the story that he was killed by an elephant.

Again. You either da man or da woman.

Sir