It seems to me that juries are the cause of more problems than good and is a system that's systematically abused by crafty procecutors or defenders:
* There are "jury consultants", whose job it is to make sure that only jury members are selected, which they feel are easiest influenced to pass the 'desired' judgement.
* Dog and pony shows in the courtroom, designed to influence jury members on an emotional level.
* Endless time wasted explaining technical concepts to clueless people (no offense here, most of us are clueless about most things), while in reality experts should be needed.
When the coverage of some high-profile trial focuses only on about how this or that event or statement ("the glove doesn't fit!") might influence the jury then we know something went wrong: It's not about truth or lie, about guilt or innocence anymore. It's all just about fomralities, proceedings, and how to mess with people's (the jurors) minds.
This is what the justice system has degenerated to and "justice" has been left behind long ago in favor of just "winning" by whatever means necessary, completely independent of guilt or innocence. The courtoom becomes a showroom, ruthless lawyers (on both sides) climb the ranks based on how good they are in influencing the jury.
Doesn't that seem very wrong?
I say: Get rid of the jury system! It's more trouble than it's worth. There are other countries which do just fine withou juries. Germany comes to mind. Their justice system generally has a pretty good reputation.