Sorry to dissapoint you YaYa but there was no smell of bleach in the motor home. There was also no evidence that the motorhome was wiped down with Pledge or any other cleaning agent.
"...Investigators say DNA evidence links Westerfield to van Dam's kidnapping and slaying: her blood was found on an article of Westerfield's clothing and in his motor home.Police also searched Westerfield's home multiple times, impounded his Toyota sport utility vehicle and motor home, and had him provide a DNA sample for analysis.
Investigators who searched the mobile home said the smell of bleach was overwhelming..."
http://abcnews.go.com/sections/us/DailyNews/missinggirl020228.html