Turkish philanthropist Osman Kavala, accused of attempting to overthrow the government and jailed since late 2017 without a conviction, speaks during an event in this undated handout photo. Photo: Anadolu Kultur/Handout via REUTERS Turkish philanthropist Osman Kavala and seven other accused delivered their final defense statements on Friday in a long-running case over nationwide protests held in 2013 that has strained Ankara’s ties with its Western allies. Kavala, 64, has been in jail for 4-1/2 years without a conviction and denies the charges he and 15 others face over the Gezi protests, which began as small demonstrations in an Istanbul...