Peter is saved by an angel of the Lord the day before King Herod was going to bring him out. He then went back to the house of Mary and everyone was happy to see him.
King Herod captured James, the brother of John, and had him killed with a sword. The Jews were very happy about this and this inspired Herod to capture Peter.
An Angel of The Lord struck down King Herod and then he was eaten by worms.  Because he did not give any glory to God and the people were not happy with him.