Frank Collins was a former member of the GCPD who became a private investigator. A little more than two months before the events of the murder of Thomas and Martha Wayne, he was tasked by the former to investigate a break-in at the Wayne Manor, as Frank had been kept on a retainer by Thomas for the past 10 years to investigate personal assignments. In the process of his investigation, Frank utilized contacts such as Oswald Cobblepot.

Frank was a pivotal character first introduced in the tie-in novel Gotham: Dawn of Darkness, and whose actions ultimately lead to the death of Thomas and Martha Wayne.

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