Later, Eric finds more evidence from the bacteria in the swamp that ties Mrs. Rittle's killer to the same person who killed her husband and abducted her daughter. An expensive honey was used.
The man's girlfriend had previously told Grissom and Nick that the man, Adam Van Der Welk, had a "sickly sweet" smell. Robbins realizes that the killer has diabetic ketoacidosis, hence the body odor.