Lawman (1958) : 4x2

One member of the Cauley gang is captured and brought to Laramie for trial, because the town where he was caught couldn't find anyone willing to serve on a jury. The other 5 Cauleys have threatened to kill anyone who served. Dan is sure Laramie will rally to the cause, but finds that fear is contagious. Finally, learning that it only takes one juror, under extreme circumstances, to try a case, Dan pulls one name out of the tax register list at random to be that juror. To his shock, it's Lily's name. She accepts, and then he must worry about her safety until the trial.