“Casting JonBenet” is completely different from any of the TV documentaries, “48 Hours” or “Dateline” episodes that have been made dissecting the case of murdered 6-year-old JonBenet Ramsey over the past 20 years. 32-year-old Australian director Kitty Green, who admits she’s been fascinated with the Ramsey story since it unfolded in ’96, sought to examine the events […]