Erdogan
© Al Masdar News
Goes to show very little love between the US and Erdogan's Turkey remains

Newsweek has been scouring the Turkish press and reports an interesting fact. The pro-Erdogan media is desperate to deflect blame from Turkey, and is choosing western powers and the CIA as the likeliest culprit:
Despite the anti-Russian sentiment voiced by hundreds of Turks who protested outside the Russian consulate in Istanbul last week—reflecting growing national anger over the actions of Putin's forces in Aleppo—mainstream newspapers have been quick to deflect blame to Western powers for the assassination, channeling Erdogan's hardening rhetoric against Western inaction in Syria.

Pro-government papers Yeni Şafak and Yeni Söz explicitly blamed the CIA while Takvim described Karlov's killer, off-duty policeman Mervut Mert Altintaş, as the "envoy" of a "Western alliance."

Popular dailies have emphasized the reactions of Russian officials to the murder; Yeni Şafak reported that Senator Franz Klintsevich, deputy chairman of the upper chamber of the Russian Parliament's defence and security committee, blamed NATO for the attack: "It is highly likely that representatives of foreign NATO secret services are behind it. What has happened is a true provocation, a challenge. It is a challenge for Russia."
Obviously the Turkish press is just speculating here and writing what is convenient for Erdogan rather than reporting what it knows. Nonetheless its scramble shows a few important things:

1.) Turkey is desperate to preserve Russia relations ergo the rush to deflect blame

2.) Turks are hugely frustrated with the US and willing to believe all the worst about it

This isn't difficult to understand if one remembers that Turkey blames the attempted July coup on the followers of Fetullah Gülen who since 1999 has been holed up in Pennsylvania and has been a CIA asset for decades.