In this task, you are given two sentences in the English language (Sentence 1 and Sentence 2). Your task is to identify the connecting word between the two sentences.
Q: Sentence 1:Cragen and his detectives later determined that the wife of the boy 's biological father killed his mother and gave the baby to the adoption agency , where he was given a home . Sentence 2:In the end , the boy 's biological father won custody of him .
A:
in the end