EXETER
I arrest thee of high treason, by the name of
Richard Earl of Cambridge.
I arrest thee of high treason, by the name of
Henry Lord Scroop of Masham.
I arrest thee of high treason, by the name of
Thomas Grey, knight, of Northumberland.

SCROOP
Our purposes God justly hath discover'd;
And I repent my fault more than my death;
Which I beseech your highness to forgive,
Although my body pay the price of it.

CAMBRIDGE
For me, the gold of France did not seduce;
Although I did admit it as a motive
The sooner to effect what I intended:
But God be thanked for prevention;
Which I in sufferance heartily will rejoice,
Beseeching God and you to pardon me.

GREY
Never did faithful subject more rejoice
At the discovery of most dangerous treason
Than I do at this hour joy o'er myself.
Prevented from a damned enterprise:
My fault, but not my body, pardon, sovereign.

KING HENRY V
God quit you in his mercy! Hear your sentence.
You have conspired against our royal person,
Join'd with an enemy proclaim'd and from his coffers
Received the golden earnest of our death;
Wherein you would have sold your king to slaughter,
His princes and his peers to servitude,
His subjects to oppression and contempt
And his whole kingdom into desolation.
Touching our person seek we no revenge;
But we our kingdom's safety must so tender,
Whose ruin you have sought, that to her laws
We do deliver you. Get you therefore hence,
Poor miserable wretches, to your death:
The taste whereof, God of his mercy give
You patience to endure, and true repentance
Of all your dear offences! Bear them hence.

This is a section of Shakespeare's Henry V that seems particularly relevant today, as a murderer awaits his punishment.