Note the quotation from Matthew does not say that a Jew killed Abel.
And so upon you will come all the righteous blood that has been shed on earth, from the blood of righteous Abel to the blood of Zechariah son of Berekiah, whom you murdered between the temple and the altar. I tell you the truth, all this will come upon this generation
. It says they are going to pay for all the tighteous blood that was shed.
Note Matthew 23:29-31
Woe to you, scribes and Pharisees, hypocrites! for you build the tombs of the prophets and adorn the monuments of the righteous,
30] saying, `If we had lived in the days of our fathers, we would not have taken part with them in shedding the blood of the prophets.'
31] Thus you witness against yourselves, that you are sons of those who murdered the prophets.
I don’t hear the Pharisees denying that their fathers murdered the prophets.
Or note the parable of the vineyard Matthew 21:33-42
Hear another parable. There was a householder who planted a vineyard, and set a hedge around it, and dug a wine press in it, and built a tower, and let it out to tenants, and went into another country.
34] When the season of fruit drew near, he sent his servants to the tenants, to get his fruit;
35] and the tenants took his servants and beat one, killed another, and stoned another.
36] Again he sent other servants, more than the first; and they did the same to them.
37] Afterward he sent his son to them, saying,
They will respect my son.' **38**] But when the tenants saw the son, they said to themselves,This is the heir; come, let us kill him and have his inheritance.'
39] And they took him and cast him out of the vineyard, and killed him.
40] When therefore the owner of the vineyard comes, what will he do to those tenants?"
41] They said to him, "He will put those wretches to a miserable death, and let out the vineyard to other tenants who will give him the fruits in their seasons."
Jesus said to them, "Have you never read in the scriptures:
It seemed pretty well acknowledged that prophets were a poor insurance risk.