Can love allow others to be killed when you are able to prevent it even though you must employ deadly force to do so?
You never address the other side of the equation.
And that would be an argument from silence.
So, because Jesus didn't spell it out for you, you'd just let innocent people be slaughtered even though you had the means to stop it.
Is that what you are saying?
And here is a re-post of Romans 13 which states specifically that God appointed the police and army to use deadly force when necessary.
Rom 13:1-4
Let every soul be subject to the governing authorities.
For there is no authority except from God, and the authorities that exist are appointed by God.
Therefore whoever resists the authority resists the ordinance of God,
and those who resist will bring judgment on themselves.
For rulers are not a terror to good works, but to evil.
Do you want to be unafraid of the authority?
Do what is good, and you will have praise from the same.
For he is God’s minister to you for good.
But
if you he do evil, be afraid; for he does not bear the sword in vain;
for he is God’s minister, an avenger to execute wrath on him who practices evil.
He executes that wrath with his sword.