User blog comment:GianG/Bloodbath: the unnamed tribute (Bagno di sangue: i tributi senza nome)/@comment-24811738-20140525162718/@comment-24492510-20140526081131

Also, even the D10 boy was an extra death and didn't replace any tributes, it doesn't make sence he died second, because it was enstablished by Isabelle Fuhrman that Jeremy Marinas was the stuntest actor, and stuntest actors match strongest tributes.

It is more likely he replaced his district partner, who wasn't very stronger or skilled.