Why did Shisui not kill Danzo?

The whole point of his sacrifice is that: His death would be very significant and would therefore attract a lot of attention. If all eyes are on Shisui, then Danzo cannot go digging without putting himself in the spotlight. It would obscure the location of the eye, so Danzo wouldn’t be able to get his hands on it.

Can Shisui use izanami?

From what it appears, Shisui had considerably the best pair of eyes amongst the Uchiha clan. With that said, Shisui is definitely capable of using Izanami as so should any other Uchiha member that awakens their mangekyou.

Did Shisui use susanoo against Danzo?

Shisui Uchiha used or manifested a Susanoo with one eye the time he was fighting Danzo, reason being he had already awaken Mangekyo Sharingan in both eyes so the chakra to manifest Susanoo at any time or state stays in your body not in the eyes.

Does hiruzen know Danzo killed Shisui?

He could have even avenged Shisui by finishing off Danzo but he didn’t do that. Hiruzen would have believed itachi, as hiruzen knows how shady danzo is and as soon as all the Uchiha’s were massacred, hiruzen quickly deduced that Danzō was responsible.

Can danzo use izanami?

Danzo didn’t use Izanagi because Shisui’s eye had the use of Kotoamatsukami, the second or third most powerful genjutsu in all of Naruto. Since he had no way of finding Shisui’s other eye, he had no way to replace it.

What happened between Itachi and Shisui?

Itachi and Shisui both new a Civil War was on the cards since Uchiha were plotting a Coup. Both having grown up in the era of great war didn’t want it to come to that. Shisui tried to use his Genjutsu prowess on the village elders to stop the anhilation of Uchihas, but Danzo overpowered him and stole his eye.

Why did Danzo try to steal Shisui Uchiha’s eyes?

Shisui Uchiha gave his life for safety of Konoha and Uchiha clan. In order to supress the coup d’état he was ready to use kotoamatsukami on Fagaku Uchiha but Danzo feared that it won’t be enough to avoid it. So, Danzo tried to steal Shisui’s eyes for himself.

How did Itachi and Danzo meet up?

Danzo didn’t believe in shisui uchiha and stolen his right eye in order to protect the konoha in his own way of things, somehow shisui escaped from danzo and his followers and meet up with Itachi.

Why did Uchiha give his Mangekyo Sharingan to Itachi?

He didn’t want any other power monger to get hold of his other Mangekyo Sharingan and thus entrusted it to Itachi, because he knew he believed in the same ideals. He left the village and faked his death. Source: http://naruto.wikia.com/wiki/Shisui_Uchiha