I would say SOME want to convict, but others cannot get to that conclusion.
In a trial, as a juror, you can only use what is presented by both sides. You cannot try the case—you are trying the evidence put before you.
Also, as a juror, you must listen carefully, as sloppy lawyers on both sides will attempt to manipulate you into believing something that has not been put into evidence.
And when the law is unjust , you can nullify.