Because he was a friend of Caesar's and would be able to get close to him. Also, if Caesar's good friend participated in the conspiracy, the others might think they don't need to feel as guilty about it.
Mostly Cassius, but other conspirators as well.
They are two conspirators, and i believe the last two left as they go into battle. Both members of senate and Cassius sways Brutus to join the conspiracy with Brutus' fetish of honor.
B. "As a greatly respected Roman, Brutus will bring credibility to the conspiracy."The conspirators wanted as many powerful men on their side as they could get, in the hopes of convincing the people that killing Caesar was for the better.
Brutus doesn't want him in the conspiracy; he says Cicero will never follow anything he doesn't start. It doesn't help Cicero; he dies anyway.
Shortly after Brutus and the other conspirators fled from Rome. She committed suicide because of the shame of the conspiracy.
Cassias recruits Brutus to the conspiracy because Brutus' integrity lends the conspiracy legitimacy.
Cassias recruits Brutus to the conspiracy because Brutus' integrity lends the conspiracy legitimacy.
No cassius, brutus' brother-in-law talks brutus into joining the conspiracy
Cassius then brutus
The triumvirate members who fought against Brutus and the conspirators were Octavian and Marc Antony.
Most of the other conspirators, apart from Cassius, are as politically naïve as Brutus. Their ideas about what the assassination would accomplish were pie-in-the-sky fantasies (as are the ideas of most political assassins). Brutus personifies the naïveté and political innocence they all shared (except Cassius).
He couldn't turn back because the conspirators would not be able to go on without him & Brutus did not want that, he was afraid of a Rome with tyranny & did not want Caesar to make this into what Rome would become. If Brutus were to back out he could be turned in for betrayal against Caesar even if it was short lived.