From Article-

"Elisa Lam's corpse was found in the Cecil Hotel's rooftop water tank by a maintenance worker who was trying to figure out why the water pressure was low Tuesday."


Now,
-Low Pressure-(*Not* No Pressure) suggests the decomposing corpse wasnt simply floating. It closely suggests a situation I have read about in the past including both anuses and pool drains. Lets hope this was not the case.