Yes there was
Macduff and Lennox appeared at Inverness Castle, which was Macbeth's home. Macduff indicated that the King had wanted him to stop by early. Macbeth led Macduff to the room where the King was staying. But only Macduff went inside. Macduff therefore was first to discover the murdered King Duncan.
As Macduff was going to wake King Duncan he discovered that King Duncan had been killed.
Macduff believes that Malcolm and Donalbain, the sons of King Duncan, are responsible for killing their father.
it was Macduff, which found in Act 2 , Scene 3
Macduff believes that Macbeth killed King Duncan and thus doesn't believe Macbeth should be king. This is evident in the fact that while Macbeth goes to Scone, Macduff finds Malcolm and convinces him to reclaim the throne.
King Macduff!
Macduff was a noble Scotsman. Duncan I [d. August 14, 1040] was the King of Scotland. Therefore, Macduff knew who King Duncan was. He was the King's subject. Additionally, Macduff appeared to number among those noble Scotsmen upon whom the King counted and with whom he moved most closely. Specifically, Macduff was the nobleman whom the King had asked to make sure that he was up and moving on to the next stop after the Macbeths' castle at Inverness. Macduff didn't get to carry out that task, because the King and his two royal guards were stabbed to death the night before.
No, Macduff was not the king of Scotland. The title of king of Scotland was held by Duncan at the beginning of Shakespeare's play "Macbeth," and later by Malcolm after overthrowing Macbeth. Macduff plays a key role in helping Malcolm reclaim the throne but he himself does not become the king.
Lennox and Macduff came to Inverness to escort King Duncanâ??s journey. It was them who first discovered the bloody corpse of the king.
Macduff discovers that the king has been murdered.
Macduff discovers King Duncan dead in Macbeth.
Well, if you mean killed, there were many! King Duncan, Banquo, Lady Macduff, Lady Macduff's son, other members of the Macduff family and Macbeth!