It's clear there are no enemies around you 35 seconds into the round and he's the only one with an inexplicably low score.
If someone is being offensive and/or abusive towards you in chat, let an admin know in 'i' chat and we can always mute him to get the message across.
Can't ever stress using 'i' chat enough!
This is his first offense and he appears to be new to the game, but a -20 score with a new player is difficult to achieve without really trying for it.
Issuing a 12 hour ban and locking.