If you hear hoofbeats outside the window, don’t think zebras, think horses. Common things are common.
Reading the lines, and between the lines: on vacation, intoxicated, had to be escorted back to room, both dead in hotel room, no trauma, no suspicions of foul play mentioned, both with pulmonary edema... It’s most likely drugs — most likely opioids — especially with the pulmonary edema. Alcohol just adds to it and makes it easier to die. Toxicology will tell all.
Mysterious deaths continue:
http://wallstreetonparade.com/2016/09/strange-deaths-of-jpmorgan-workers-continue/
There have been at least a dozen such deaths in the last 2 years in Seychelles. The local authorities are not enthused about this kind of publicity.
Suspected high grade heroin has been suggested in many of the deaths,