Esra does his best to keep a low profile and avoid engaging with the constables. He will be truthful if cornered.
How many Horarians are there? Kado + 3 unconscious + 1 deceased?
Esra pull a rope from his haversack, cuts it into appropriate length sections, and binds the 3 (I think) nameless, unconscious Horarians. I take 10 on each. Enhanced Use Rope check total is 33 (note that you get a default +10 to the check to bind someone per the PHB, which is news to me).
Someone else can load them on the floating disk. Once there, Esra connects all 5 of them together with another length of rope, including the manacled Kado and the corpse.
While binding, Esra searches and removes any items, pouches, or weapons.