Garza was born in 2247. At the age of 30, he is something of a mystery. He's physically imposing and very reserved. He won't speak of his past and prefers not to speak at all. Garza spends half his day doing heavy lifting for the scientists in the lab and the other half on the flight deck working out.
He has a serious heart condition, which is fatal unless he takes medicine regularly.
The Waters of Life: Garza is part of the group which relocates to Jefferson Memorial. During the escape, Garza will need medication to keep going. The player can either give five stimpaks to Garza, give him 3 Buffouts, or leave him to his death. Alternatively, you can simply kill him. If Garza is given the medication, he will go on to join up with the Brotherhood of Steel. If your Speech level is high enough, you can convince Dr. Li to simply leave Garza behind.
pcps3xbox360 Garza can sometimes be found in the super mutant stronghold between Rivet City and Jefferson Memorial. If he dies there, he won't appear as part of your group during The Waters of Life. [verified]
pc If Garza is there at night, and you attack and kill all the super mutants in the camp, he may go over to the makeshift beds at the rear of the camp and fall asleep there until morning, when he will walk back to Rivet City. [verified]
ps3 In the same super mutant camp, Garza may be there at the same time you are, and it is possible he will retrieve the super mutant's minigun (or other weapon. It depends on what kind of super mutants there are and who he gets to first.) If this happens, he will continue to have this weapon throughout the game (unless he finds a better one). [verified]
ps3xbox360 If you choose to leave him in Taft tunnel, he will still be there if you go back, despite his supposedly life-threatening heart attack. The only dialogue option available is the usual "Hah"? There is no way to get him out. [verified]