Craig, 45, was arrested Sunday. According to the arrest affidavit, Craig is suspected of slipping potassium cyanide and arsenic into Angela's pre-workout shake beginning the morning of March 6.

Officials bought potassium cyanide instead of sodium cyanide. Arizona previously used a mixture of drugs to carry out lethal injections but now only uses a compounded form of pentobarbital.

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Ernst Russ, who own the cargo ship, say the burning vessel is drifting southwards with one crew member still missing.