How did Maniac end up staying with the Beale family?

In Chapter 12, Mr. Beale, Amanda’s father, offers to take Maniac home, and he lies about where his home is. Mr. Beale quickly realizes that Maniac is lying because he asks Mr. Beale to stop at a house in the East End not the West End. Knowing Maniac, a white boy, wouldn’t live in a home on the East End, he quickly discovers Maniac is homeless. Mr. Beale goes back home with Maniac and, after a short discussion with Mrs. Beale, it is decided that Maniac will now be living with them.