'Butcher of Bucha' unmasked by volunteer Ukraine group

His name is Azatbek Omurbekov — but he's better known as the "Butcher of Bucha."

The stocky, steely-eyed, 40-something Russian lieutenant colonel has been outed as the commander who allegedly ordered his troops to commit "utterly inhumane" war crimes in Bucha, a town about 15 miles outside the Ukrainian capital of Kyiv.

Omurbekov, in charge of the 64th Separate Motorized Rifle Brigade, purportedly led his troops into Bucha over the weekend. What followed was the stuff of nightmares.

Hundreds of civilians were butchered, burned, and brazenly thrown into shallow graves or stuffed into...