D18241 said:fraps
div0 said:Start recording
Then type "status" into console
That adds all the players SteamID's and names into the demo
The player that you're watching should have their name show up at the bottom of the screen. Or whenever they kill anyone then you should be able to see the name in the top right (Player X killed Player Y).
At least thats how it works in CS - can't see why CS:S should be different.