I will answer one question at a time and then I will ask one question for you to answer.
Here is your question —
So JBL are you free to go out and kill people now?
Here is my answer, with scripture from the New Covenant —
Hating and murder are sins under the New Covenant, and are violation of His Commandments along with homosexuality and adultery, fornication, lying, coveting, unforgivness, blasphemy of the Spirit, and many others which include the works of the flesh.
Whoever hates his brother is a murderer, and you know that no murderer has eternal life abiding in him.
1 John 3:15
“You have heard that it was said to those of old, You shall not murder, and whoever murders will be in danger of the judgment.’ But I say to you that whoever is angry with his brother without a cause shall be in danger of the judgment. And whoever says to his brother, Raca!’ shall be in danger of the council. But whoever says, ‘You fool!’ shall be in danger of hell fire.
Matthew 5:21-22
JLB