Complex sentence: As of January 2008, only 10 of the original 55 names remain at large, it is equally possible that some or all of these individuals have been killed in the sectarian violence or military operations that ensued after the end of the invasion.
Split into simpler sentences: As of January 2008, only 10 of the original 55 names remain at large. It is possible that some or all of these individuals have been killed in the sectarian violence or military operations that ensued after the end of the invasion.