Two Russian colonels are reported to have fallen out of windows in the space of two days, adding to a growing list of high-ranking officials who have died in mysterious circumstances since Vladimir Putin's war in Ukraine began. Artur Pryakhin, 56, the head of a regional branch of Russia's Federal Antimonopoly Service (FAS) in the Republic of Karelia, died after falling from a fifth floor window of an office building at around noon on February 4. Local authorities said he left a suicide note in his office in which he apologized to his wife, asked his loved ones for forgiveness,...