Complex sentence: Alikhadzhiyev, who was with his four minor children and was caring for a sick mother, did not resist; he was handcuffed, blindfolded and taken by an armoured vehicle to a location nearby, which is where he was last seen.
Split into simpler sentences: Alikhadzhiyev, who had four small children and was caring for a sick mother, didn't resist. He was blindfolded and taken to a location nearby, which is where he was last seen.