Stephen Morton/Getty ImagesFORT STEWART, Ga. - The commanding general of the Georgia Army post where three soldiers died in a weekend training accident says their armored vehicle rolled off a bridge and was submerged upside down in a stream. Maj. Gen. Antonio Aguto struggled to hold back tears during a news conference at Fort Stewart on Monday as he announced the deaths of Sgt. 1st Class Bryan Jenkins of Florida; Pfc. Family photos of Bryan JenkinsAguto said the soldiers were training in a Bradley fighting vehicle in darkness shortly before 3:30 a.m. Sunday. Fundraising accounts have been set up to help Jenkins', Garcia's and Walker's families to help them cover the soldiers' funeral expenses.