How did Kukudio die?

It is revealed in Season Six that Kukudio died due to the complications of injuries sustained in a fight with Suzanne in Season Four shortly before the riot.

Maureen Kukudio was an inmate at Litchfield Penitentiary. She is portrayed by Emily Althaus. She is a secondary antagonist in Season Four. Her love interest was Suzanne Warre

Kukudio initially comes across as shy but is sexually outgoing towards Suzanne. She describes herself as “polymorphously perverse” (a Freudian term); she thought she was the only one like that until she read about Suzanne’s erotica character Sunflower.

She has difficulty talking about feelings, instead preferring to communicate deep feelings through poetry. Her interests include poetry and literature (e.g. psychological works of Freud), indicating she is well educated and deeply thoughtful.

She displays irrational, manipulative, socially awkward, sometimes violent, and sexually deviant behavior, e.g. throwing turtles, randomly undressing, and later, playing mind games with Suzanne.