He did not want to be humiliated in Rome after defeat.
Cassius does: he writes him letters that were supposedly from citizens of Rome telling Brutus he needs to kill Caesar for the good of Rome
It was better to kill himself than to allow the enemy to capture him.
Brutus was of Rome and loved Rome so much kill him in order to save Rome from dictatorship
strato
He is willing to kill Caesar because Cassius convinced him that this is for the people of Rome and Brutus believes him. So Brutus thinks that the conspiracy is killing him for Rome but really they are killing him because they think he will become too powerful
Brutus and the conspirators believed that Julius Caesar was going to become a tyrant and destroy Rome with his dictatorship. Brutus was very honorable and believed that if they killed Caesar they will be remembered as the men who saved Rome from a tyrant and will become the most honorable men in Rome. But after the death of Caesar they were the most hated men in Rome. Brutus was manipulated and persuaded by Cassius' inspirational words about saving Rome and its people that he forgot the real purpose of killing Caesar. Brutus was the only one who wanted to kill Caesar for Rome the rest just wanted to kill him out of sheer jealousy.(All the conspirators thought that he[Caesar] was power hungry and too powerful for his own good.)
Brutus'....
Brutus
Brutus'....
Brutus asks Strato to kill him so Brutus wouldn't have to die by the enemies sword *<edit> Because the last answer was rather strange I decided to help. Cassius killed himself once he thought his friend (Titinius or something like that) was kidnapped by the enemy. He asked Pindarus (or how ever you spell his name) to kill him. Brutus kills himself later (thanks to the help of Strato) cause he's sure they're are going to lose to Antony. That's how it works in the play Julius Caesar but for all I know the top answer could be true. I rarely look into things deep. 2nd edit brutus kills himself because he feels bad for killing Caesar for no good reason. Cassius kills himself b/c he thought titunius was kidnapped and dead. after all this, Antony, octavius and lepidus are in charge of rome
Brutus doesn't really have much if an opinion of Caesar. He doesn't envy or hate him and he considers him as a friend and vice versa with Caesar. The only reason why he joined the conspiracy to kill Caesar is for the good of Rome, while the rest of the conspirators kill him our of envy.