It is unknown if the District 2 male was reaped, or volunteered to take another tribute's place, but he entered the Games as a Career Tribute. In The Hunger Games film, Katniss Everdeen sees him smashing the last tribute's skull with a hard brick to win the Games. After his victory, since he was the newest victor from District 2, it’s presumed that he may have mentored Cato or Clove for the 74th Hunger Games.
He was presumably present at the reaping of the 75th Hunger Games, as all victors were required to attend no matter their age, circumstances and situations. He was fortunately not reaped, as Brutus had volunteered to partake in this years games. It’s unknown if he was the mentor for Brutus and Enobaria for the Third Quarter Quell.
It’s unknown when he died; however, he was deceased by the end of the Second Rebellion, as he was absent in the meeting among the remaining victors.