by Adem ALTAN with Stuart WILLIAMS in Istanbul Agence France-Presse ANKARA, Turkey (AFP) — A Turkish policeman crying “Aleppo” and “Allahu Akbar” shot dead Russia’s ambassador to Turkey in Ankara on Monday, prompting a vow from President Vladimir Putin to step up the fight against “terrorism.” Andrei Karlov died of his wounds after the shooting in an Ankara exhibition center, which came on the eve of a key meeting in Moscow between the Russian, Turkish […]