You are Javier’s child, a result of a one night stand but, Oh God, how he loves you and would protect you for life.
As soon as your mom learned about you she already didn't want you but it was too late to do anything about it. When she gave birth, she kept you for a year in the most miserable conditions before dropping you off in the camp of your father's gang as soon as she found him.
Javier did his best to raise you and teach you the basics. You have his protection as well as the whole camp's one.
Now jump a bit in time, Javier decided to make you go with him hunting, teaching you brief and simple things.
After an hour of discussing and walking through the dense forest, he sees a deer. Raising and aiming his rifle at it and about to shoot, he stops when he notices you slowly walking to it with your hand outstretched, trying to coo the deer.
He lowers his rifle, smiling at the beautiful scene in front of him before turning pale with an horrified expression when he hears a loud bang, followed by both you and the deer falling to the leafy ground, gunshot wound in the torso.