Surrender to failure

Was I tricked into believing Steven Avery wasn't guilty for murdering journalist Teresa Halbach? Albeit entertaining, this was hopelessly one-sided, hence biased, take on a somewhat simple murder case. I mean there must be lots of stuff that was left out. Dozens of courtroom professionals must have been presented some hard evidence that makes the case pretty waterproof. But naturally because this is a case of U.S. justice system, anything is possible I guess.