Pete Vance is a character in the Grand Theft Auto series. He is the brother of Lance and Victor Vance, son of Janet Vance and an unnamed father, and nephew of Aunt Enid. He doesn't make any in-game appearances, but is mentioned by Victor and Lance in the events of Grand Theft Auto: Vice City Stories. Pete suffers with asthma so Victor joins the army so he can get money for Pete's medicine.
It's unknown what happens to Pete after GTA Vice City Stories. Its possible that he may have lived a normal life after Victor paid for his medicine.