Conversation so far:
What kind of  background does Geronimo have?
Geronimo was born to the Bedonkohe band of the Apache, near Turkey Creek.
Did he stay there his whole childhood?
CANNOTANSWER.
Did he have brothers and sisters?
He had three brothers and four sisters.
Was his childhood happy?
His parents raised him according to Apache traditions; after the death of his father, his mother took him to live with the Tchihende.
What happened after he moved?
Geronimo married a woman named Alope, from the Nedni-Chiricahua band of Apache when he was 17; they had three children.
Did he attend school?
he and his followers would frequently attack and kill any group of Mexicans that they encountered.

Question: Why woud they attack and kill Mexicans?
Self-contained rewrite: Why would Geronimo and the followers attack and kill Mexicans?