Three things - One: she was outside, not in a room. Two: your friend smelling things 2 years afterward is probably psychological. People die all the time, in often homes, nursing homes and hospitals - those do not reek of death. My mother died in my home, we did not have to do any special cleaning and believe me my home does not reek of anything. Three: regretfully, Caylees body was scatt soered over a fairly large area, she did not stay wrapped in plastic. I agree with Gnatcatcher, There was no way after all that time they smelled anything