Here's another boring one. Sorry about that.
It starts with the spirit of God coming on Zechariah, which, of course, makes him condemn everybody else.
The Spirit of God came upon Zechariah the son of Jehoiada the priest, which stood above the people, and said unto them, Thus saith God, Why transgress ye the commandments of the LORD, that ye cannot prosper? because ye have forsaken the LORD, he hath also forsaken you. 2 Chronicles 24:20
Then the people get pissed off at him, so they stone him (with stones).
And they conspired against him, and stoned him with stones at the commandment of the king [Joash] in the court of the house of the LORD. 24:21
As Zechariah died he asked God to avenge his death.
When he died, he said, The LORD look upon it, and require it. 24:22
So God sends "the host of Syria" to Judea to kill its princes.
So God sends "the host of Syria" to Judea to kill its princes. 24:23
And defeat the "very great" Judean army, which the Syrians were able to do with "a small company of men" because the Lord delivered the army of Judah into their hand.
For the army of the Syrians came with a small company of men, and the LORD delivered a very great host into their hand, because they had forsaken the LORD God of their fathers. So they executed judgment against Joash. 24:24
In the process, Joash was wounded and then killed in his bed.
When they were departed from him, (for they left him in great diseases,) his own servants conspired against him for the blood of the sons of Jehoiada the priest, and slew him on his bed, and he died. 24:25
he Bible doesn't say how many died, but since the Lord delivered "a very great host" into the hand of the Syrians, I'll say 10,000.