Defending Jacob 2

When it was revealed that Patz confessed I was completely shocked, especially because he revealed he did it from a note shortly before he committed suicide. I am surprised that Patz did it because, in my opinion, all of the evidence pointed towards Jacob. I am not sure why the police automically said it was Patz, even though he confessed he could have went insane and lied about it. It surpises me that they did not go ahead and further prove that he committed the murder.