Taking Advantage
Another example of how these 2 disgusting individuals were taking advantage of their poor father. The more Marty learned about them, the angrier he got about everything. And by then, he had not even learned the worst part about what these boys were up to.
But he would find out soon enough. But first, he needed to know where they were located in the city. Because he now had a different idea about how to find out the truth.