Had a ddos on my team half way through the game. The evidence is where everyone was lagging and rubber banding. However, 1 player had clear connection and was running around killing everyone. I have a youtube link for this below and you can watch the evidence there. The enemy team still won because we were throwing so the enemy team wouldn't lose elo.
https://www.youtube.com/watch?v=VyOD5GSWmvc
https://www.youtube.com/watch?v=VyOD5GSWmvc