I can imagine the smell.
A long time ago, a friend of mine, Tony, passed away at home. I had a key to his place so that I could check on things when he was on vacation, which he had just come back from. His coworker called me because he was not showing up for work (he was in charge the Netware system for DCCCD.)
To make matters worse, he passed away from an instantly fatal heart attack while sitting on the commode.
So, I called 911 and some great people who hang uniforms on their bodies came and took care of things professionally and I was glad to have them around.
Anyway, the smell was unpleasant.