Just correcting 3 points above: 1) the watch did not track heart rate, 2) they suspected heatstroke as COD
before toxicology results and autopsy results were available; both were still pending as of the last update on Aug. 27 and have not been released, 3) Heatstroke was never officially confirmed, COD is “undetermined.”
All quotes from this article:
GPS Data From Philip Kreycik's Smart Watch Indicates He Likely Succumbed Quickly to Heat
At the time COD as heat stroke was suspected, “
Results of a toxicology report on Kreycik are still pending.”
“Some experts in this field looked at the data and explained to us that it’s very possible that he had a heat stroke-related incident,” says sheriff's spokesperson Sgt. Ray Kelly, speaking to the Chronicle.”
“The watch was
not monitoring Kreycik's heart rate, so no exact time of death is available. But the circuitous route he took after departing the trail indicates that he may have succumbed to heat stroke and experienced some delirium before his ultimate death.”
Kreycik’s cause and manner of death is still officially “
undetermined,” though heat is suspected. Per Sgt. Kelly in a separate Aug. 25 article: "it's very likely [the cause and manner of death] could be determined (as) undetermined."
Authorities: Philip Kreycik likely died on Pleasanton Ridge before search effort began