So the painter is the "murderer"?

I am past the part where Raskolnikov confesses to Sonya. Now, beginning the next chapter, I find out that not only does Sonya know that he is the murderer, but also Svidrigailov. Now is when I feel trouble will start. Now is when people he does not want to know, start to know. I feel like now he is starting to adopt a sort of "mad man's" living condition... sometimes waking up at home, sometimes waking up in the middle of the bushes. He starts to live in his own world, not having any idea what is happening around him, which I feel is why sometimes he just loses himself and wakes up in the bushes. In all honestly, that is like a lunatic's living condition because he got kicked out of his house or something like that. I do like Sonya's character. I thought it was really nice that she held his hand at Katernia's funeral, showing that she still accepts Raskolnikov regardless of the fact that he is a murderer. I was shocked when they declared the painter as the murderer..... I am curious to see what is going to unfold next.