article_snippet.sent: Robinson, who worked in a maximum security control room known as 'the bubble', struck up a relationship with the inmate - who has not been named -  in a nearby cell.
article_snippet.sent: The two would talk using an intercom when an inmate's manager left a maximum security control room known as 'the bubble'.
article_snippet.sent: When Robinson's manager went to lunch, an inmate released the inmate from Robinson's manager and brought Robinson's manager into the bubble'.