At the time of the recording of the band's second album, Curtis's condition was particularly severe, with him enduring a weekly average of two tonic-clonic seizures. On one occasion during these recordings, Curtis's bandmates became concerned when they noted he had been absent from the recording studio for two hours. The band's bassist, Peter Hook, discovered Curtis unconscious on the floor of the studio's toilets, having hit his head on a sink following a seizure.
This condition might have been controllable using current meds. Sad.
The doctors killed him.