The damage doesn't seem consistent with the rotors being stationary prior to impact. That would have resulted in "brick mode" and no relatively big chunks of recognisable structure.
More likely I think an emergency landing on the roof (maybe auto, maybe not) as the street was probably full of people and it's pretty hard to deliberately land on people. Then rotors stopped or nearly so. Then the roof under the skids collapsed, with the tail boom getting folded up as the bit of roof under it hadn't collapsed. Running out of fuel seems unlikely, more likely a yaw control problem or the like.