Because Peggy Sue you don't live in North Korea or Russia, yet! In our country every single person even if they confessed to the crime is allowed a legal defense what part of that don't you understand this is called America and it's in our Constitution why don't you brush up on reading it........ looks like you stopped reading it what you got to the part where you got to have a gun....... there's a lot more there take a look in fact we stopped slavery in this country check it out it's in the Constitution