I followed Euromaidan forces from the center of Independence Square through a retaken October Palace, ending in the open sniper fire on Instituska St. after police lines were somehow broken. After a bullet penetrated the shield of a man to my front, I returned to the Square.
Some video:
Maidan’s Instituska St. push on February 20th, about 0915:
Here, Euromaidan combatants attempt to scale the hill upon which October Palace sits, while police forces lob stun and smoke grenades, and shoot at them (see a few people fall, wounded, down the hill as they are shot). A second Euromaidan combat group moves in from the left, carrying flags and hurling molotov cocktails as police fall back.
Some video:
09:55: Maidan self-defense member sprints across Instituska St. as shots are fired. I do not know if the shots came from snipers, AK-47s, or were interfering rounds fired by friendly self-defense forces.