EDTA is a chemical that is added to certain foods and beverages to help them keep their color and flavor. For instance, it is sometimes added to: 1  Sodas. 2  Canned fruits and vegetables. 3  Non-nutritive sweeteners. 4  Condiments such as mayonnaise. 5  Salad dressings.
Herman Wallace was serving a 50-year sentence for armed robbery when he was convicted, along with fellow inmate Albert Woodfox, for the murder of a prison guard at the Louisiana State Penitentiary in 1972. Wallace spent 41 years in solitary confinement.
Some systems make a distinction between various reasons for solitary confinement. âDisciplinary segregationâ is time spent in solitary as punishment for violating prison rules, and usually lasts from several weeks to several years.ne man held at Pelican Bay SHU referred to solitary confinement as âa psychological-emotional stormâ and a â life negating emptiness.â In the federal system, Thomas Silverstein (described as Americaâs â most isolated man â) has been held under a âno human contactâ order for over 30 years.