Horrifying History on Instagram: "Footage shows an ambush or gang attack near a public transport entrance, possibly a metro station, in a busy city environment. • Initial Scene (0:00-0:02): A woman in a black puffer jacket and two men are standing near a railing at the top of stairs leading underground. A man in a dark jacket and jeans is on his phone. • The Attack (0:02-0:04): The woman is seen suddenly and violently pushed or thrown down the flight of stairs leading to the underground entrance