Ziko Sulliman, a Muslim from Sudan, attacked Zakaria Zain in a dispute days after the squaddie's death.
The pair had been drinking in Sulliman's home in Middlesbrough when a report of the killing was on TV news.Wait, what?
Sulliman was remanded in custody and will be sentenced on September 6 after a background report has been prepared.
Andrew Teate, defending, told Judge Tony Briggs: "He is aware a lengthy custodial sentence will follow."Well, clearly he's been drinking! With our justice system, I wouldn't be so sure of that!