WILLIAM JACKSON v. STATE OF MARYLAND
Court of Special Appeals, Graeff, Filed Feb. 28, 2014,
Writ of Actual Innocence- Perjury by an expert witness regarding educational history was not material and could have been discovered prior to trial

A ballistics expert lied about his educational history and testified at trial that a bullet fragment found at the location was fired by the same gun used in the murder as well as the distance of the victim from the gun that killed him. Because this later-discovered perjury went to credibility regarding a collateral issue, not the core question of guilt or innocence, it was immaterial.
Moreover, given the quantity of evidence against him, it was not likely to have changed the outcome.