Answer: He steals from them to pay his drug dealer
Step-by-step explanation:
In the book Enrique's Journey by Sonia Nazario, the story of Enrique and his attempts to get into the United States in order to find his mother is told. Enrique's mother left to go to the United States to be able to fend for her family but has not been able to return and Enrique misses her.
He is fed up with life and begins to take drugs which make him more rebellious. He then tries to go find his mother and leaves for the US with his friend Jose. After that attempt fails he starts using drugs even more such that he is in debt with his drug dealer who then threatens to kill his cousin if he does not pay up.
He then steals his aunt's jewelry in order to settle the debt.