Taxonomy (general), the practice and science of classification of things or concepts, including the principles that underlie such classification Folk taxonomy, the way people describe and organize their natural surroundings
In 1994, Robert Ben Rhoades was convicted of the first degree murder of Regina Kay Walters and sentenced to life without parole at Menard Correctional Center in Chester, Illinois.
Gretchen Schwartz is Walter White's old college chemistry assistant and now co-owner of Gray Matter Technologies, a successful pharmaceutical company. A former romantic interest of Walt's, she is currently married to Elliott Schwartz, with whom she also manages Gray Matter. Gretchen was introduced via a flashback.