Ultranationalist Russian military blogger Andrey Morozov reportedly died by suicide days after posting claims that Russia suffered massive personnel losses in Avdiivka. Morozov, who wrote under the pseudonym “Murz” on Telegram, was a pro-Kremlin commentator who participated in Russia’s full-scale invasion of Ukraine. Russian state-run media and other military bloggers said he died by suicide on Feb. 20. Morozov sparked outrage among pro-Russian outlets when he claimed on Feb. 18 that the Russian military lost 16,000 soldiers and 300 armored vehicles in its assault on Avdiivka in Donetsk Oblast…