Complex sentence: The day prior to his death, Took had purchased morphine and hallucinogenic mushrooms for himself and Billiet Billiet subsequently recalled that the evening before Took died, they had both injected themselves with the morphine.
Split into simpler sentences: The day prior to his death, Took had purchased morphine and hallucinogenic mushrooms for himself and Billet. Billet subsequently recalled that the evening before Took died, they had both injected themselves with the morphine.