FORT MEADE, Md. (AP) — Some workers at a Marine Corps brig housing a soldier charged with sending U.S. secrets to WikiLeaks became annoyed at a demonstration on his behalf the day before a confrontation that led to tighter restrictions on him, a former guard testified Saturday.

The testimony by former Marine Corps Lance Cpl. Jonathan Cline undercut government efforts to show that Pfc. Bradley Manning’s tight confinement conditions were justified to prevent him from killing or hurting himself. The defense claims the nine months Manning spent in virtual isolation, sometimes without clothing, amounted to illegal pretrial punishment. Manning and his attorneys want all the charges dismissed.