Actually, Liu Ju never died.
Long before the scandal broke, Wei Qing had spirited him away to Wuling Mountains.
When Liu Ju saw Liu Two-Dog, he fell to his knees and sobbed:
"Imperial Uncle… this unworthy nephew failed. I caused the death of my mother-consort and wife and children…"
Two-Dog kicked him upright:
"Quit bawling! I lost my life once and I'm still breathing.
You're the Crown Prince, the hope of the Han. Stand up.
We're riding back to Chang'an to butcher every last one of those dogs."