Final answer:
The injected solution that led to the destruction of many red blood cells was likely not isotonic. The term "dimethyl sulfate" seems to be a typo for dimethyl sulfate, which is a highly toxic chemical that could have been responsible for the described hematological damage.
Step-by-step explanation:
The question seems to refer to an incident involving exposure to dimethyl sulfate, a highly toxic and potentially lethal chemical. When the substance enters the bloodstream, it is metabolized to form sulfate and methyl ions that are toxic to cells. Specifically, red blood cells can be damaged or destroyed, leading to hemolysis which could explain why many red blood cells were destroyed as mentioned in the autopsy findings. However, the question mistakenly mentions "dimethyl sulfate" which seems to be a typo, and the correct chemical should be dimethyl sulfate.
To answer the key inquiry, if the injected solution caused the destruction of many red blood cells, it is highly unlikely that the solution was truly isotonic. An isotonic saline solution would have the same concentration of solutes as the blood, thereby preserving the integrity of the red blood cells and preventing hemolysis. The evidence suggests that the injected solution may have been hypotonic or contained a harmful substance, leading to the destruction of red blood cells.