A Kane and Lynch: Dead Men demo is now available to download from the XBOX Live Marketplace. The same demo was available to download on the PlayStation 3 from the PlayStation Network earlier this month.
At 520MB, the demo lets gamers play the first level of the game in single player and co-op modes. The dashboard description for the demo is: "From the creators of Hitman, hard-edged criminal action with explosive squad based combat. Single player and Co-op."