hello everyone. i mfredric i mfredrickahere in the cnn newsroom. we begin in cairo, egypt. live pictures from tahrir square at nightfall. watching the crowd go by the hour all day long. demonstrators started gathering this morning right after an egyptian judge sentenced former president hosni mubarak to life in prison for his role in killing hundreds of anti-government protesters last year. let s bring in cnn s ben wedeman who joins us now from the balcony overlooking tahrir square. ben it is getting late there. however, it appears that the darkness isn t in any way disbursing that crowd. what is the objective here? [ no audio ] reporter: outside of cairo. hosni mubarak and his interior minister did get life sentences but cleared the corruption charges and the interior of ministry got off scot-free, that s krucrux of this and why people are so angry. remember, more than 800 egyptians were killed by government sources during this proet te protest and everybody responsibl