• Frank Atwood, 66, going to executed by lethal injection at the state prison in Florence.
• Vicki Hoskinson had gone missing months before after leaving her Tucson home to put a birthday card in a neighboring mailbox.
• The execution crew attempted and failed to implant an IV into Dixon’s left arm before connecting it to his right arm.

An Arizona prisoner, Frank Atwood sentenced to death for the 1984 murder of an 8-year-old child is set to be executed on Wednesday. The state’s second execution since officials resumed carrying out the capital penalty in May after a nearly eight-year suspension.

Frank Atwood, 66, going to executed by lethal injection at the state prison in Florence for the murder of Vicki Hoskinson. She had gone missing months before after leaving her Tucson home to put a birthday card in a neighboring mailbox.

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Death penalty opponents are concerned that Arizona will now begin executing a continuous stream of convicts on death row. However, the state authorities did not reply quickly to a request for comment on their future execution plans.

In recent weeks, judges have rejected requests by Atwood’s attorneys to postpone the execution. He has maintained his innocence.

The execution crew attempted and failed to implant an IV into Dixon’s left arm before connecting it to his right arm. They then performed another incision in his groin for an IV line.

Dixon’s execution was the first in the state since the July 2014 execution of Joseph Wood. He received 15 doses of a two-drug combination over the course of roughly two hours.

Wood snorted and gasped many times before passing away.