Opinion: Jurors saw through the preposterous defense by Ahmaud Arbery’s killers

As Americans digest the guilty verdicts in the case of the three men charged with murdering Ahmaud Arbery, we can look to the powerful video evidence and the stellar work of prosecutor Linda Dunikoski and her team in managing that evidence as significant factors in an outcome 180 degrees different from the verdict in George Zimmerman’s killing of Trayvon Martin.