Complex sentence: All were announced by the United States Department of Defense (DOD) as suicides, but the deaths of the first two Saudi detainees, who were among three men who died on June 10,2006, have been strongly questioned by numerous sources.
Split into simpler sentences: All were announced by the United States Department of Defense (DOD) as suicides. The first two of these were among three men who died on June 10,2006; their deaths have been strongly questioned by numerous sources.