Who Murdered the Duke of Gloucester? Part 4

O, had thy grandsire with a prophet's eye
Seen how his son's son should destroy his sons,
From forth thy reach he would have laid thy shame,
Deposing thee before thou wert possess'd,
Which art possess'd now to depose thyself.
(I.ii.104-107)

That blood already, like the pelican,
Hast thou tapp'd out and drunkenly caroused:
My brother Gloucester, plain well-meaning soul,
Whom fair befal in heaven 'mongst happy souls!
May be a precedent and witness good
That thou respect'st not spilling Edward's blood.
(II.i.124-131)

(These speeches occur before York's and should have been discussed first).

Just before his death, John of Gaunt again accuses Richard of Gloucester's murder--and this time to his face.