Do you mean, "Who was accused of murdering Duncan"? The grooms in Duncan's chamber, for a start. Then Malcolm and Donalbain were accused of paying the grooms to commit the murder.
Macbeth figured that if the grooms were allowed to speak, they would deny any involvement in the murder of Duncan, and this would cause people to look elsewhere for his murderer. As it is, nobody (except Macduff) seriously doubts that the grooms were the killers.
Nobody, unless you count the voice that said that Macbeth had murdered sleep. He did kill the two grooms, but not until the next morning.
Lady Macbeth made the plan. The grooms who were to be guarding the king were to be made so drunk that they would not wake. Macbeth was to go into Duncan's rooms, steal the guards' daggers, kill Duncan with them, wipe the blood on the grooms so they would look guilty and leave the daggers there, and return to Lady Macbeth after which they were to return to bed.
The daggers. He was supposed to leave them in Duncan's bedchamber to incriminate to grooms but he forgot. Lady Macbeth has to take them back, because Macbeth does not want to look at the murder scene again.
Well, it is Lady Macbeth's plan really, although Macbeth was tempted by a similar idea. The idea was to kill the king and put the blame on his servants. Macbeth is Duncan's cousin, and so might succeed to the throne.
To inherit Duncan's Throne
why was macbeth releuctant to kill duncan
What causes him to want to kill King Duncan is the foretelling of him being king. This was announced by three witches.
There was problems in Germany so he blamed the Jews and that is what made Hitler kill.
She didn't want to kill him herself, because she said Duncan looked like her dad while he slept. She did have Macbeth murder Duncan nonetheless
he reminds her of her father
He killed stewart and Duncan to get the throne