A prosecutor isn't supposed to toss cases at a jury to "see what happens." The prosecution is supposed to believe 1) that the person actually did the crime, an

A prosecutor isn't supposed to toss cases at a jury to "see what happens." The prosecution is supposed to believe 1) that the person actually did the crime, and 2) that a jury can be convinced of it. You can debate the specific thresholds of doubt for each of those prongs, but "I dunno, let the jury sort it out" is a very bad system.